# Microsoft 365 vs Thunderbird Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Microsoft 365 excels in overall user satisfaction, boasting a significantly higher G2 Score compared to Thunderbird. Users appreciate its seamless integration with tools like Excel and Word, which enhances productivity and collaboration within teams.
- **Users say** that Thunderbird shines in managing multiple email accounts effortlessly, especially for those using different providers. Its open-source nature and powerful local filtering rules are highlighted as major advantages, making it a favorite for users who prioritize customization.
- **Reviewers mention** that Microsoft 365's ease of use is a standout feature, with many praising its intuitive interface and helpful features like autosave. This functionality not only boosts productivity but also alleviates concerns about losing work, which is a common pain point for many users.
- **According to verified reviews** , Thunderbird's ability to consolidate various email accounts into a single shared inbox is a game-changer for users who juggle multiple profiles. This feature, along with built-in encryption for secure messaging, makes it a strong contender for those focused on security and organization.
- **G2 reviewers highlight** that Microsoft 365 offers superior support quality, with users noting responsive assistance and a wealth of resources available for troubleshooting. This level of support can be crucial for businesses that rely heavily on email and collaboration tools.
- **Users report** that while Thunderbird is highly customizable, it may not match the overall polish and integration capabilities of Microsoft 365. Some users find that the lack of certain advanced features can hinder their workflow, especially in a business context where efficiency is key.



| | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Star Rating** | 4.6 out of 5 | 4.3 out of 5 | 
| **Total Reviews** | 5,817 | 339 | 
| **Largest Market Segment** | Mid-Market (35.4% of reviews) | Small-Business (65.1% of reviews) | 
| **Entry Level Price** | $6.00 1 User Per Month | No pricing available | 

---
## Top Pros & Cons

### Microsoft 365

Pros:
- Ease of Use (297 reviews)
- Team Collaboration (228 reviews)

Cons:
- Expensive (117 reviews)
- Missing Features (102 reviews)

### Thunderbird

Pros:
- Ease of Use (4 reviews)
- Functionality Features (4 reviews)

Cons:
- Difficult Setup (2 reviews)
- Missing Features (2 reviews)

---
## Ratings Comparison
| Rating | Microsoft 365 | Thunderbird | 
|---|---|---|
  | **Meets Requirements** | 9.3 (4793 reviews) | 8.7 (304 reviews) | 
  | **Ease of Use** | 9.0 (4851 reviews) | 8.7 (305 reviews) | 
  | **Ease of Setup** | 8.9 (1401 reviews) | 8.8 (75 reviews) | 
  | **Ease of Admin** | 8.7 (1044 reviews) | 8.4 (58 reviews) | 
  | **Quality of Support** | 8.5 (4053 reviews) | 7.9 (222 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.8 (1018 reviews) | 8.1 (41 reviews) | 
  | **Product Direction (% positive)** | 8.8 (4720 reviews) | 7.6 (302 reviews) | 

---
## Pricing

### Microsoft 365

#### Entry-Level Pricing

Plan: Microsoft 365 Business Basic

Price: $6.00 1 User Per Month

Description: Business Basic combines web and mobile versions of the Office apps, business email with Exchange, user management, 1 TB of OneDrive storage, and Teams for up to 300 users.

Key Features:
- Identity, access, and user management for up to 300 employees
- Custom business email (you@yourbusiness.com
- Web and mobile versions of Word, Excel, PowerPoint, and Outlook

[Browse all 3 editions](https://www.g2.com/products/microsoft365/pricing)

#### Free Trial

Yes

### Thunderbird

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Cloud Content Collaboration

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 9.1/10 | 255 |
| **Thunderbird** | N/A | N/A |

#### File Management

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Device Syncing** | 9.2 (182 reviews) | Not enough data | 
| **Web Interface** | 9.2 (177 reviews) | Not enough data | 
| **File Type Support** | 9.3 (176 reviews) | Not enough data | 
| **Search** | 8.9 (171 reviews) | Not enough data | 
| **Mobile Apps** | 8.8 (171 reviews) | Not enough data | 

#### Agentic AI - Cloud Content Collaboration

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Autonomous Task Execution** | 8.5 (70 reviews) | Not enough data | 
| **Cross-system Integration** | 8.6 (70 reviews) | Not enough data | 
| **Natural Language Interaction** | 8.8 (71 reviews) | Not enough data | 

#### Collaboration

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **File following** | 9.2 (174 reviews) | Not enough data | 
| **File Sharing** | 9.5 (179 reviews) | Not enough data | 
| **Simultaneously Editing** | 9.1 (179 reviews) | Not enough data | 
| **Change Tracking / Audit Logs** | 8.8 (172 reviews) | Not enough data | 

#### Administration

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **User and Role Management** | 9.1 (171 reviews) | Not enough data | 
| **Policies and Controls** | 9.2 (170 reviews) | Not enough data | 
| **Device Management** | 9.0 (166 reviews) | Not enough data | 
| **Storage Limits** | 8.9 (163 reviews) | Not enough data | 
| **Storage Zones** | 8.8 (159 reviews) | Not enough data | 
| **Security** | 9.4 (171 reviews) | Not enough data | 

#### Platform

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Performance and Reliability** | 9.3 (179 reviews) | Not enough data | 
| **Reporting and Auditing** | 8.8 (174 reviews) | Not enough data | 
| **System of Record Integration** | 8.9 (173 reviews) | Not enough data | 
| **APIs** | 8.7 (174 reviews) | Not enough data | 

### Team Collaboration

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | N/A | N/A |
| **Thunderbird** | N/A | N/A |

#### Communication

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Status Updates** | Not enough data | Not enough data | 
| **Instant Messaging** | Not enough data | Not enough data | 
| **Activity Feed** | Not enough data | Not enough data | 
| **Notifications** | Not enough data | Not enough data | 
| **Comments and Voting** | Not enough data | Not enough data | 
| **Discussions** | Not enough data | Not enough data | 
| **User Directory** | Not enough data | Not enough data | 
| **Online Status of Coworkers** | Not enough data | Not enough data | 

#### Content Management

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **File Sharing** | Not enough data | Not enough data | 
| **Document Collaboration** | Not enough data | Not enough data | 
| **Version Control** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Knowledge Base** | Not enough data | Not enough data | 
| **Surveys** | Not enough data | Not enough data | 

#### Productivity Tools

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Task Management** | Not enough data | Not enough data | 
| **Calendar** | Not enough data | Not enough data | 
| **Search** | Not enough data | Not enough data | 
| **Mobile** | Not enough data | Not enough data | 
| **Multi-Language Support** | Not enough data | Not enough data | 

#### Administration

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Moderation** | Not enough data | Not enough data | 
| **User, Role, and Access Management** | Not enough data | Not enough data | 
| **Performance and Reliability** | Not enough data | Not enough data | 

### Business Instant Messaging

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.8/10 | 216 |
| **Thunderbird** | N/A | N/A |

#### Business Instant Messaging

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **File Sharing** | 9.4 (176 reviews) | Not enough data | 
| **Notifications** | 9.2 (175 reviews) | Not enough data | 
| **Search** | 8.8 (171 reviews) | Not enough data | 

#### Business Instant Messaging 

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Audio Conferencing** | 9.1 (174 reviews) | Not enough data | 
| **Video Conferencing** | 9.2 (175 reviews) | Not enough data | 

#### Business Instant Messaging

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Mobile Application** | 9.0 (172 reviews) | Not enough data | 
| **Web Application** | 9.2 (176 reviews) | Not enough data | 
| **Integrations** | 8.9 (169 reviews) | Not enough data | 

#### Generative AI - Business Instant Messaging

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Text Summarization** | 8.6 (124 reviews) | Not enough data | 

#### AI - Business Instant Messaging

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **AI Powered Search** | 8.5 (124 reviews) | Not enough data | 
| **Smart Notifications** | 8.6 (125 reviews) | Not enough data | 
| **AI Powered Language Translation** | 8.5 (125 reviews) | Not enough data | 
| **Content Generation** | 8.6 (127 reviews) | Not enough data | 

#### Agentic AI - Business Instant Messaging

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Cross-system Integration** | 8.5 (78 reviews) | Not enough data | 
| **Natural Language Interaction** | 8.4 (78 reviews) | Not enough data | 

### Screen Sharing

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.7/10 | 163 |
| **Thunderbird** | N/A | N/A |

#### Presenter Tools

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Live Preview** | 8.9 (124 reviews) | Not enough data | 
| **Notifications Blocker** | 8.5 (125 reviews) | Not enough data | 
| **Remote Control** | 8.2 (122 reviews) | Not enough data | 
| **Switch Presenter** | 8.6 (122 reviews) | Not enough data | 

#### Conferencing Options

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Group Live Chat** | 9.0 (129 reviews) | Not enough data | 
| **Audio Conferencing** | 9.0 (130 reviews) | Not enough data | 
| **Video Conferencing** | 9.0 (134 reviews) | Not enough data | 

#### Application Tools

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Password Protection** | 8.8 (122 reviews) | Not enough data | 
| **Recording** | 8.6 (123 reviews) | Not enough data | 
| **In-Browser Application** | 8.8 (124 reviews) | Not enough data | 

#### Agentic AI - Screen Sharing

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Decision Making** | 8.2 (38 reviews) | Not enough data | 

### Presentation

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.4/10 | 237 |
| **Thunderbird** | N/A | N/A |

#### Platform Basics

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Slide Design** | 8.7 (166 reviews) | Not enough data | 
| **Presenter Tools** | 8.8 (164 reviews) | Not enough data | 
| **Auto Save** | 9.1 (167 reviews) | Not enough data | 

#### Platform Content

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Charts** | 8.8 (166 reviews) | Not enough data | 
| **Template Library** | 8.3 (162 reviews) | Not enough data | 
| **Template Creator** | 8.5 (154 reviews) | Not enough data | 
| **File Sharing** | 9.1 (166 reviews) | Not enough data | 

#### Platform Additional Functionality

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Messaging** | 8.9 (160 reviews) | Not enough data | 
| **Mobility** | 8.9 (160 reviews) | Not enough data | 
| **Cloud** | 9.1 (171 reviews) | Not enough data | 

#### Generative AI

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **AI Text Generation** | 8.2 (108 reviews) | Not enough data | 
| **AI Image-to-Text** | 7.9 (104 reviews) | Not enough data | 
| **AI Text-to-Video** | 7.3 (103 reviews) | Not enough data | 
| **AI Text Summarization** | 8.0 (105 reviews) | Not enough data | 
| **AI Text-to-Music** | 7.2 (102 reviews) | Not enough data | 
| **AI Text-to-Speech** | 7.9 (103 reviews) | Not enough data | 
| **AI Text-to-Image** | 7.5 (101 reviews) | Not enough data | 

### Email Client

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.8/10 | 279 |
| **Thunderbird** | 8.5/10 | 123 |

#### Inbox Tools

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Unified Inbox** | 8.9 (208 reviews) | 8.9 (104 reviews) | 
| **Filters** | 9.0 (206 reviews) | 8.9 (109 reviews) | 
| **Reminders** | 9.0 (208 reviews) | 8.5 (96 reviews) | 
| **Notifications** | 9.0 (208 reviews) | 8.7 (104 reviews) | 

#### Coordination Tools

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Calendar** | 9.2 (218 reviews) | 8.4 (93 reviews) | 
| **Contacts** | 8.9 (207 reviews) | 8.6 (101 reviews) | 
| **Task Management** | 8.7 (204 reviews) | 8.4 (89 reviews) | 

#### Software Options

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Desktop Application** | 9.3 (216 reviews) | 9.2 (111 reviews) | 
| **Mobile Application** | 8.8 (211 reviews) | 7.6 (64 reviews) | 

#### Email Client - Agentic AI

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Autonomous Task Execution** | 8.2 (72 reviews) | Not enough data | 
| **Cross-system Integration** | 8.0 (73 reviews) | 8.0 (5 reviews) | 

### Spreadsheets

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.9/10 | 251 |
| **Thunderbird** | N/A | N/A |

#### Calculating

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Functions** | 9.2 (184 reviews) | Not enough data | 
| **Auto Recalculation** | 9.1 (182 reviews) | Not enough data | 

#### Insights

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Charts and Graphs** | 8.7 (182 reviews) | Not enough data | 
| **Tables** | 9.1 (180 reviews) | Not enough data | 

#### Editing

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Templates** | 8.8 (180 reviews) | Not enough data | 
| **Collaborative Editing** | 8.8 (183 reviews) | Not enough data | 
| **Filtering** | 8.9 (176 reviews) | Not enough data | 

#### Functionality

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Addons** | 8.5 (177 reviews) | Not enough data | 
| **Multi Device Functionality** | 8.9 (183 reviews) | Not enough data | 
| **Importing and Exporting** | 9.0 (176 reviews) | Not enough data | 
| **Autosave** | 9.1 (180 reviews) | Not enough data | 

### Office Suites

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.8/10 | 1599 |
| **Thunderbird** | N/A | N/A |

#### Applications

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Basic applications** | 9.3 (1345 reviews) | Not enough data | 
| **Suite access** | 9.0 (1252 reviews) | Not enough data | 
| **Templates** | 8.8 (1201 reviews) | Not enough data | 

#### Collaboration

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Cloud collaboration** | 9.0 (1236 reviews) | Not enough data | 
| **Annotations** | 8.8 (1094 reviews) | Not enough data | 
| **Simultaneously editing** | 8.7 (1179 reviews) | Not enough data | 

#### Management

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Web Interface** | 8.8 (1197 reviews) | Not enough data | 
| **File Type Support** | 9.2 (1230 reviews) | Not enough data | 
| **Auto save** | 9.2 (1263 reviews) | Not enough data | 

#### Agentic AI - Office Suites

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Autonomous Task Execution** | 8.1 (127 reviews) | Not enough data | 
| **Natural Language Interaction** | 8.1 (136 reviews) | Not enough data | 

### Video Conferencing

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.9/10 | 236 |
| **Thunderbird** | N/A | N/A |

#### Collaboration Tools

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Screen Sharing** | 9.0 (186 reviews) | Not enough data | 
| **Presentations** | 9.1 (185 reviews) | Not enough data | 
| **Whiteboarding** | 8.6 (180 reviews) | Not enough data | 
| **Live Chat** | 9.1 (183 reviews) | Not enough data | 
| **Hand Raising** | 9.1 (181 reviews) | Not enough data | 

#### Meeting Coordination

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Scheduling** | 9.2 (189 reviews) | Not enough data | 
| **Recording** | 9.0 (182 reviews) | Not enough data | 
| **Participant Permissions** | 9.0 (182 reviews) | Not enough data | 
| **One-Click Join** | 9.0 (177 reviews) | Not enough data | 

#### Software Type

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Mobile** | 9.0 (187 reviews) | Not enough data | 
| **Browser Application** | 9.1 (183 reviews) | Not enough data | 
| **Desktop Application** | 9.2 (185 reviews) | Not enough data | 

#### Agentic AI - Video Conferencing

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Autonomous Task Execution** | 8.3 (68 reviews) | Not enough data | 
| **Proactive Assistance** | 8.3 (68 reviews) | Not enough data | 
| **Decision Making** | 8.1 (68 reviews) | Not enough data | 

### Survey

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.9/10 | 61 |
| **Thunderbird** | N/A | N/A |

#### Survey Management

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Survey Builder** | 8.8 (47 reviews) | Not enough data | 
| **Question Types** | 9.0 (44 reviews) | Not enough data | 
| **Templates** | 8.7 (45 reviews) | Not enough data | 
| **Survey Distribution** | 8.9 (46 reviews) | Not enough data | 

#### Survey Customization

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Branching/Skip Logic** | 8.6 (46 reviews) | Not enough data | 
| **Branding** | 8.8 (47 reviews) | Not enough data | 
| **Multimedia Support** | 8.7 (45 reviews) | Not enough data | 
| **Multilingual Surveys** | 8.8 (44 reviews) | Not enough data | 

#### Survey Insights

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Reporting & Analytics** | 8.9 (45 reviews) | Not enough data | 
| **BI Tools Integration** | 9.0 (43 reviews) | Not enough data | 
| **Data Exporting** | 9.0 (44 reviews) | Not enough data | 
| **Permissions** | 9.0 (47 reviews) | Not enough data | 

#### Agentic AI - Survey

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Adaptive Learning** | 9.2 (13 reviews) | Not enough data | 
| **Proactive Assistance** | 8.7 (13 reviews) | Not enough data | 
| **Decision Making** | 8.8 (13 reviews) | Not enough data | 

### Calendar

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.6/10 | 253 |
| **Thunderbird** | N/A | N/A |

#### Calendar View

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Multi-Calendar View** | 9.0 (200 reviews) | Not enough data | 
| **Customizable Viewing** | 8.9 (203 reviews) | Not enough data | 

#### Shared Calendar

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Calendar Collaboration** | 9.0 (203 reviews) | Not enough data | 
| **Multiple Calendar Management** | 8.9 (200 reviews) | Not enough data | 

#### Accessibility

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Screen Reader Compatibility** | 8.8 (191 reviews) | Not enough data | 
| **Keyboard Shortcuts** | 8.6 (192 reviews) | Not enough data | 

#### Integration

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Sync Multiple Calendars** | 8.8 (193 reviews) | Not enough data | 
| **Import Events** | 8.7 (196 reviews) | Not enough data | 
| **Software Integrations** | 8.8 (194 reviews) | Not enough data | 

#### Notifications

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Customized Calendar Notifications** | 9.0 (196 reviews) | Not enough data | 
| **Location-Based Alerts** | 8.6 (193 reviews) | Not enough data | 

#### Generative AI

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **AI Text-to-Image** | 7.8 (134 reviews) | Not enough data | 
| **AI Text-to-Speech** | 8.0 (131 reviews) | Not enough data | 
| **AI Image-to-Text** | 7.8 (130 reviews) | Not enough data | 

#### Agentic AI - Calendar

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Cross-system Integration** | 7.7 (71 reviews) | Not enough data | 

### Online Appointment Scheduling

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.7/10 | 135 |
| **Thunderbird** | N/A | N/A |

#### Notifications

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Confirmations & Reminders** | 9.0 (110 reviews) | Not enough data | 
| **Appointment Follow-Up** | 8.7 (109 reviews) | Not enough data | 
| **Scheduling Notifications** | 8.9 (108 reviews) | Not enough data | 

#### Settings

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Time Zone Detection** | 9.1 (112 reviews) | Not enough data | 
| **Availability Settings** | 9.1 (108 reviews) | Not enough data | 
| **Blocked Time Settings** | 9.0 (108 reviews) | Not enough data | 

#### Personalization

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Branding** | 8.6 (108 reviews) | Not enough data | 
| **Links** | 8.8 (107 reviews) | Not enough data | 

#### Integrations

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Multi- Calendar Integration** | 8.9 (109 reviews) | Not enough data | 
| **Website Integration** | 8.9 (103 reviews) | Not enough data | 
| **Payment Acceptance** | 8.3 (103 reviews) | Not enough data | 
| **Video Conferencing** | 9.0 (106 reviews) | Not enough data | 
| **Communication** | 8.7 (104 reviews) | Not enough data | 

#### Generative AI

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **AI Text Generation** | 8.5 (77 reviews) | Not enough data | 
| **AI Text Summarization** | 8.5 (77 reviews) | Not enough data | 
| **AI Text-to-Image** | 8.1 (77 reviews) | Not enough data | 
| **AI Text-to-Speech** | 8.3 (78 reviews) | Not enough data | 
| **AI Image-to-Text** | 8.2 (78 reviews) | Not enough data | 

#### Agentic AI - Online Appointment Scheduling

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Autonomous Task Execution** | 8.7 (42 reviews) | Not enough data | 
| **Multi-step Planning** | 8.9 (43 reviews) | Not enough data | 
| **Natural Language Interaction** | 8.8 (43 reviews) | Not enough data | 

### Document Creation

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.7/10 | 306 |
| **Thunderbird** | N/A | N/A |

#### Design

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Graphics** | 8.8 (226 reviews) | Not enough data | 
| **Templates** | 8.8 (229 reviews) | Not enough data | 
| **Themes** | 8.7 (228 reviews) | Not enough data | 

#### Collaboration

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Multi-User Collaboration** | 9.2 (230 reviews) | Not enough data | 
| **Real-Time Communication** | 9.2 (231 reviews) | Not enough data | 

#### File Types

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Export** | 9.4 (236 reviews) | Not enough data | 
| **Import** | 9.1 (232 reviews) | Not enough data | 
| **Web Publishing** | 8.5 (224 reviews) | Not enough data | 

#### Edit & Revise

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Revision History** | 8.9 (232 reviews) | Not enough data | 
| **Suggestion Mode** | 8.8 (227 reviews) | Not enough data | 
| **Document Editor** | 9.2 (234 reviews) | Not enough data | 

#### Integrate & Embed

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Calendar** | 8.8 (228 reviews) | Not enough data | 
| **Website** | 8.5 (226 reviews) | Not enough data | 
| **Applications** | 8.8 (229 reviews) | Not enough data | 

#### Operating System

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **PC Operating System** | 9.4 (232 reviews) | Not enough data | 
| **Mac Operating System** | 8.5 (224 reviews) | Not enough data | 
| **Linux Operating System** | 7.8 (216 reviews) | Not enough data | 

#### Generative AI

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **AI Text Generation** | 8.0 (168 reviews) | Not enough data | 
| **AI Text Summarization** | 8.1 (167 reviews) | Not enough data | 
| **AI Text-to-Image** | 7.7 (164 reviews) | Not enough data | 
| **AI Text-to-Speech** | 7.9 (167 reviews) | Not enough data | 
| **AI Image-to-Text** | 7.8 (162 reviews) | Not enough data | 

#### Agentic AI - Document Creation

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Proactive Assistance** | 8.3 (86 reviews) | Not enough data | 

### Email Management

| Product | Score | Reviews |
|---|---|---|
| **Microsoft 365** | 8.6/10 | 260 |
| **Thunderbird** | 8.9/10 | 9 |

#### Sorting & Filtering

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Attachment Search** | 8.9 (210 reviews) | 9.2 (6 reviews) | 
| **Tags** | 9.0 (206 reviews) | 10.0 (7 reviews) | 
| **AI Sorting** | 8.5 (200 reviews) | 8.0 (5 reviews) | 
| **Predefined Rules** | 8.9 (205 reviews) | 9.2 (6 reviews) | 

#### Integrations

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Microsoft Outlook Integration** | 9.3 (211 reviews) | 8.3 (6 reviews) | 
| **Gmail Integration** | 8.4 (199 reviews) | 9.0 (7 reviews) | 
| **Apple Calendar Integration** | 8.1 (195 reviews) | 8.1 (6 reviews) | 

#### Time Management

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Unified Inbox** | 8.8 (199 reviews) | 9.4 (6 reviews) | 
| **Email Automation** | 9.0 (206 reviews) | 8.8 (7 reviews) | 
| **Snooze** | 8.7 (201 reviews) | 9.0 (5 reviews) | 

#### Generative AI

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **AI Text Generation** | 8.3 (149 reviews) | Not enough data | 
| **AI Text-to-Speech** | 8.2 (149 reviews) | Not enough data | 
| **AI Text Summarization** | 8.4 (151 reviews) | Not enough data | 

#### Agentic AI - Email Management

| Feature | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Autonomous Task Execution** | 8.5 (81 reviews) | Not enough data | 
| **Cross-system Integration** | 8.5 (81 reviews) | Not enough data | 

---
## Categories
**Shared Categories (2):** [Email Management Software](https://www.g2.com/categories/email-management), [Email Client Software](https://www.g2.com/categories/email-client)

**Unique to Microsoft 365 (11):** [Business Instant Messaging Software](https://www.g2.com/categories/business-instant-messaging), [Screen Sharing Software](https://www.g2.com/categories/screen-sharing), [Spreadsheets Software](https://www.g2.com/categories/spreadsheets), [Presentation Software](https://www.g2.com/categories/presentation-software), [Online Appointment Scheduling Software](https://www.g2.com/categories/online-appointment-scheduling), [Document Creation Software](https://www.g2.com/categories/document-creation), [Cloud Content Collaboration Software](https://www.g2.com/categories/cloud-content-collaboration), [Office Suites Software](https://www.g2.com/categories/office-suites), [Calendar Software](https://www.g2.com/categories/calendar-software), [Survey Software](https://www.g2.com/categories/survey), [Video Conferencing Software](https://www.g2.com/categories/video-conferencing)



---
## Reviewer Demographics

### By Company Size

| Segment | Microsoft 365 | Thunderbird | 
|---|---|---|
| **Small-Business** | 34.4% | 65.1% | 
| **Mid-Market** | 35.4% | 24.4% | 
| **Enterprise** | 30.2% | 10.5% | 

### By Industry

#### Microsoft 365

- **Information Technology and Services:** 10.7%
- **Education Management:** 5.8%
- **Computer Software:** 5.2%
- **Higher Education:** 4.8%
- **Hospital & Health Care:** 4.0%
- **Financial Services:** 3.0%
- **Marketing and Advertising:** 2.6%
- **Non-Profit Organization Management:** 2.4%
- **Construction:** 2.1%
- **Accounting:** 2.0%
- **Other:** 57.2%

#### Thunderbird

- **Information Technology and Services:** 13.0%
- **Computer Software:** 11.7%
- **Internet:** 6.6%
- **Marketing and Advertising:** 5.1%
- **Telecommunications:** 3.3%
- **Higher Education:** 2.7%
- **Consumer Goods:** 2.4%
- **Design:** 2.4%
- **Education Management:** 2.1%
- **Renewables & Environment:** 2.1%
- **Other:** 48.5%

---
## Alternatives

### Alternatives to Microsoft 365

- [Google Workspace](https://www.g2.com/products/google-workspace/reviews) — 4.6/5 stars (47968 reviews)
- [ONLYOFFICE Workspace](https://www.g2.com/products/onlyoffice-workspace/reviews) — 4.4/5 stars (66 reviews)
- [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56367 reviews)
- [LibreOffice](https://www.g2.com/products/libreoffice/reviews) — 4.3/5 stars (270 reviews)
- [Bitrix24](https://www.g2.com/products/bitrix24/reviews) — 4.1/5 stars (608 reviews)
- [Zoho Mail](https://www.g2.com/products/zoho-mail/reviews) — 4.4/5 stars (713 reviews)
- [WPS Office](https://www.g2.com/products/wps-office/reviews) — 4.4/5 stars (332 reviews)
- [OpenOffice](https://www.g2.com/products/openoffice/reviews) — 4.3/5 stars (312 reviews)
- [MobiOffice](https://www.g2.com/products/mobioffice/reviews) — 4.5/5 stars (39 reviews)
- [Doodle](https://www.g2.com/products/doodle/reviews) — 4.4/5 stars (2069 reviews)

### Alternatives to Thunderbird

- [Front](https://www.g2.com/products/front/reviews) — 4.7/5 stars (2463 reviews)
- [Spike](https://www.g2.com/products/spike/reviews) — 4.6/5 stars (262 reviews)
- [Mailbird](https://www.g2.com/products/mailbird/reviews) — 3.6/5 stars (101 reviews)
- [BlueMail](https://www.g2.com/products/bluemail/reviews) — 4.3/5 stars (53 reviews)
- [Microsoft Outlook](https://www.g2.com/products/microsoft-outlook/reviews) — 4.5/5 stars (3467 reviews)
- [Shift](https://www.g2.com/products/redbrick-shift/reviews) — 4.5/5 stars (264 reviews)
- [eM Client](https://www.g2.com/products/em-client/reviews) — 4.0/5 stars (61 reviews)
- [Zimbra Desktop](https://www.g2.com/products/zimbra-desktop/reviews) — 4.4/5 stars (22 reviews)
- [Mailspring](https://www.g2.com/products/mailspring/reviews) — 3.8/5 stars (18 reviews)
- [K-9 Mail](https://www.g2.com/products/k-9-mail/reviews) — 4.5/5 stars (13 reviews)

---
## Top Discussions

### Microsoft 365

- Title: [how to transfer microsoft office to another computer](https://www.g2.com/discussions/how-to-transfer-microsoft-office-to-another-computer) — 4 comments, 1 upvote
  > **Top comment:** "To complete this tasks, you have to have a product key and use that key to set up Microsoft on the second computer."
- Title: [what is the best way to make sure you never lose any work if your computer crashes](https://www.g2.com/discussions/14451-what-is-the-best-way-to-make-sure-you-never-lose-any-work-if-your-computer-crashes) — 3 comments, 1 upvote
  > **Top comment:** "Connect OneDrive to your Office files so you can backup, access, share, and collaborate on all your files from anywhere"
- Title: [What are the uses of Microsoft software?](https://www.g2.com/discussions/what-are-the-uses-of-microsoft-software) — 2 comments, 1 upvote
  > **Top comment:** "Software can be used as Office Applications as well as using the M365 services like Power Apps etc"
- Title: [What is Microsoft Office features?](https://www.g2.com/discussions/what-is-microsoft-office-features) — 2 comments
  > **Top comment:** "Wide range of products like:
Power point
Word
Excel
Visio"
- Title: [What you can other things you can do to Microsoft office?](https://www.g2.com/discussions/what-you-can-other-things-you-can-do-to-microsoft-office) — 2 comments, 1 upvote
  > **Top comment:** "You can rearrange all the programs in the Office package in your pinned program bar. I like to go warm to cool, but you could alternate or do a rainbow."

### Thunderbird

- Title: [Has anyone managed to use the copy and paste function from excell?](https://www.g2.com/discussions/12306-has-anyone-managed-to-use-the-copy-and-paste-function-from-excell) — 2 comments, 1 upvote
  > **Top comment:** "Strange -- when I do it, the columns and rows are maintained (though some of the formatting is not kept). 

What version are you using? I'm still using..."
- Title: [What is the use of Thunderbird software?](https://www.g2.com/discussions/what-is-the-use-of-thunderbird-software) — 1 comment, 1 upvote
  > **Top comment:** "It allows you to manage multiple emails in a single window without back and forth switching. That's the main use I found. Besides that, it also has a good..."
- Title: [Has anyone managed to use the copy and paste function from excell?](https://www.g2.com/discussions/30110-has-anyone-managed-to-use-the-copy-and-paste-function-from-excell) — 1 comment
  > **Top comment:** "Thunderbird does not recognize Excel’s formatting the way Outlook can. But, it can recognize formatting from Word. Copy paste from Excel to Word, then from..."

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/microsoft365-vs-thunderbird)