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# Mozilla Firefox vs Opera Comparison - What are their main differences?

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Reviews

**Mozilla Firefox** [

4.4/5(510)

](https://www.g2.com/products/mozilla-firefox/reviews#reviews)

**Opera** [

4.2/5(214)

](https://www.g2.com/products/opera/reviews#reviews)

Pricing

**Mozilla Firefox**
No pricing available

**Opera**
No pricing available

**Pricing Insights**
from reviews

Time to Implement

**Mozilla Firefox**
2 months

Based on 21 responses

**Opera**
1 monthFaster

Based on 7 responses

Return on Investment

**Mozilla Firefox**
10 months

Based on 6 responses

**Opera**
Not enough reviews yet

Perceived Cost

**Mozilla Firefox**
$$$$$

**Opera**
$$$$$

Average Discount

**Mozilla Firefox**
21%

**Opera**
Not enough reviews yet

Pros & Cons

**Mozilla Firefox**
[
Fast Speed (7)
](https://www.g2.com/products/mozilla-firefox/reviews?filters%5Bsentiment_snippet%5D=1795691&qs=pros-and-cons#reviews)[
Customizability Options (6)
](https://www.g2.com/products/mozilla-firefox/reviews?filters%5Bsentiment_snippet%5D=2032733&qs=pros-and-cons#reviews)[
Slow Performance (5)
](https://www.g2.com/products/mozilla-firefox/reviews?filters%5Bsentiment_snippet%5D=1795623&qs=pros-and-cons#reviews)[
Tab Management (5)
](https://www.g2.com/products/mozilla-firefox/reviews?filters%5Bsentiment_snippet%5D=2079568&qs=pros-and-cons#reviews)

**Opera**
[
VPN Features (4)
](https://www.g2.com/products/opera/reviews?filters%5Bsentiment_snippet%5D=1213985&qs=pros-and-cons#reviews)[
Fast Speed (3)
](https://www.g2.com/products/opera/reviews?filters%5Bsentiment_snippet%5D=1214141&qs=pros-and-cons#reviews)[
Limited Extensions (2)
](https://www.g2.com/products/opera/reviews?filters%5Bsentiment_snippet%5D=2402334&qs=pros-and-cons#reviews)[
Ad Blocking (1)
](https://www.g2.com/products/opera/reviews?filters%5Bsentiment_snippet%5D=1214404&qs=pros-and-cons#reviews)

Integrations

**Mozilla Firefox**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_841af23a31cac0c33e6632ba9847ff51/firefox-developer-edition.png "Product Avatar Image")

Firefox Developer Edition

](https://www.g2.com/products/firefox-developer-edition/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_e990fe8ed14ebfa2e1aba541661cbfc5/proton-pass-for-business.png "Product Avatar Image")

Proton Pass For Business

](https://www.g2.com/products/proton-pass-for-business/reviews)[
View all
](https://www.g2.com/products/mozilla-firefox/integrations)

**Opera**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_e990fe8ed14ebfa2e1aba541661cbfc5/proton-pass-for-business.png "Product Avatar Image")

Proton Pass For Business

](https://www.g2.com/products/proton-pass-for-business/reviews)[
View all
](https://www.g2.com/products/opera/integrations)

Screenshots

**Mozilla Firefox**
No screenshot available

**Opera**
 ![Opera screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/1300600/Captura-de-pantalla-2023-03-22-110017.png)

Ratings

Meets Requirements

**Mozilla Firefox**

9.0

9.0398

**Opera**

8.8

8.8177

Ease of Use

**Mozilla Firefox**

9.1

9.1400

**Opera**

9.0

9.0181

Ease of Setup

**Mozilla Firefox**

9.2

9.2112

**Opera**

8.7

8.741

Ease of Admin

**Mozilla Firefox**

8.8

8.873

**Opera**

8.2

8.222

Quality of Support

**Mozilla Firefox**

8.7

8.7301

**Opera**

8.3

8.3142

Has the product been a good partner in doing business?

**Mozilla Firefox**

8.8

8.862

**Opera**

7.9

7.917

Product Direction (% positive)

**Mozilla Firefox**

8.2

8.2388

**Opera**

8.0

8.0167

Features

Browser[Hide 27 FeaturesShow 27 Features](javascript:void(0);)

8.5

28

8.1

63

Generative AI

AI Text Generation

8.1

20

8.3(won by 0.2)

58

AI Text Summarization

8.4(won by 0.2)

18

8.2

58

AI Text-to-Speech

7.7

19

8.0(won by 0.3)

56

Generative AI

Not enough data

Not enough data

Agentic AI - Browser

Natural Language Interaction

8.8(won by 1.1)

8

 (There is a greater than 0.5 difference between this product's rating and its competitors)

7.7

5

Autonomous Task Execution

8.3(won by default)

5

Not enough data

Proactive Assistance

9.4(won by default)

8

Not enough data

Additional Functionality

App Management

Not enough data

Not enough data

Search Engine

Not enough data

Not enough data

AI Copilot

Not enough data

Not enough data

Developer Tools

Not enough data

Not enough data

Search History

Not enough data

Not enough data

User Profiles

Not enough data

Not enough data

Private Browsing

Not enough data

Not enough data

Dark Mode

Not enough data

Not enough data

Address Bar

Not enough data

Not enough data

VPN

Not enough data

Not enough data

Anomaly/Malware Detection

Not enough data

Not enough data

Tab Management

Not enough data

Not enough data

Ad Blocker

Not enough data

Not enough data

Password Management

Not enough data

Not enough data

Customizable User Interface

Not enough data

Not enough data

Extension Management

Not enough data

Not enough data

Tracker Blocking

Not enough data

Not enough data

Privacy Options

Not enough data

Not enough data

Bookmark Management

Not enough data

Not enough data

Messaging

Not enough data

Not enough data

Show 1 feature category with incomplete data

Collaboration & Productivity[Hide 45 FeaturesShow 45 Features](javascript:void(0);)

Not enough data

Not enough data

Additional Functionality

Third-Party Integrations

Not enough data

Not enough data

To-Do List

Not enough data

Not enough data

@mentions

Not enough data

Not enough data

Single Sign On

Not enough data

Not enough data

File Management

Not enough data

Not enough data

Activity Dashboard

Not enough data

Not enough data

Drag & Drop

Not enough data

Not enough data

Alerts/Notifications

Not enough data

Not enough data

Prioritization

Not enough data

Not enough data

Access Controls/Permissions

Not enough data

Not enough data

Screen Sharing

Not enough data

Not enough data

Content Management

Not enough data

Not enough data

Brainstorming

Not enough data

Not enough data

AI Copilot

Not enough data

Not enough data

File Transfer

Not enough data

Not enough data

Calendar Management

Not enough data

Not enough data

Status Tracking

Not enough data

Not enough data

Real-Time Notifications

Not enough data

Not enough data

Version Control

Not enough data

Not enough data

Task Management

Not enough data

Not enough data

Activity Tracking

Not enough data

Not enough data

Real Time Editing

Not enough data

Not enough data

Communication Management

Not enough data

Not enough data

Chat/Messaging

Not enough data

Not enough data

Tagging

Not enough data

Not enough data

Generative AI

Not enough data

Not enough data

Assignment Management

Not enough data

Not enough data

Task Scheduling

Not enough data

Not enough data

Project Management

Not enough data

Not enough data

Collaboration Tools

Not enough data

Not enough data

Workflow Management

Not enough data

Not enough data

Secure Data Storage

Not enough data

Not enough data

File Sharing

Not enough data

Not enough data

Document Storage

Not enough data

Not enough data

Task Progress Tracking

Not enough data

Not enough data

Discussions/Forums

Not enough data

Not enough data

Commenting/Notes

Not enough data

Not enough data

Reporting & Statistics

Not enough data

Not enough data

Contact Management

Not enough data

Not enough data

Video Conferencing

Not enough data

Not enough data

Progress Tracking

Not enough data

Not enough data

Mobile Access

Not enough data

Not enough data

API

Not enough data

Not enough data

Document Management

Not enough data

Not enough data

Customizable Branding

Not enough data

Not enough data

User Insights

Reviewers' Company Size

[![Mozilla Firefox](https://images.g2crowd.com/uploads/product/hd_favicon/60efa3cc81aecc5648c50cc4fbb6f119/mozilla-firefox.svg "Mozilla Firefox")](https://www.g2.com/products/mozilla-firefox/reviews)

Mozilla Firefox

Small-Business(50 or fewer emp.)

41.4%

Mid-Market(51-1000 emp.)

33.4%

Enterprise(\> 1000 emp.)

25.2%

[![Opera](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_8649246bffe579546b2fbf7fc49035e1/opera.png "Opera")](https://www.g2.com/products/opera/reviews)

Opera

Small-Business(50 or fewer emp.)

62.1%

Mid-Market(51-1000 emp.)

21.8%

Enterprise(\> 1000 emp.)

16.0%

Small-Business

(50 or fewer emp.)

41.4%

62.1%

Mid-Market

(51-1000 emp.)

33.4%

21.8%

Enterprise

(\> 1000 emp.)

25.2%

16.0%

Reviewers' Industry

[![Mozilla Firefox](https://images.g2crowd.com/uploads/product/hd_favicon/60efa3cc81aecc5648c50cc4fbb6f119/mozilla-firefox.svg "Mozilla Firefox")](https://www.g2.com/products/mozilla-firefox/reviews)
Mozilla Firefox

Information Technology and Services

17.1%

Computer Software

15.5%

Internet

4.1%

Marketing and Advertising

3.1%

Higher Education

3.1%

Other

57.2%

[![Opera](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_8649246bffe579546b2fbf7fc49035e1/opera.png "Opera")](https://www.g2.com/products/opera/reviews)
Opera

Information Technology and Services

17.2%

Computer Software

12.4%

Marketing and Advertising

7.2%

Education Management

5.7%

Internet

3.8%

Other

53.6%

FAQs

## Firefox vs Opera FAQs

Generated using AI

Last updated: August 14, 2026

### What is the difference between Firefox vs Opera?

Firefox stands out for its higher reviewer satisfaction scores and privacy focus, while Opera is recognized for its built-in VPN and feature-rich experience.

| [Firefox](https://www.g2.com/products/mozilla-firefox/reviews) | [Opera](https://www.g2.com/products/opera/reviews) |
| --- | --- |
| 4.4/5 (509 reviews) | 4.2/5 (214 reviews) |
| Small-Business | Small-Business |
| 9.2 | 8.7 |
| 8.7 | 8.3 |
| Privacy Focus | VPN Features |

### How do the pricing models of Firefox and Opera compare?

Firefox is rated higher for value, with reviewers expressing greater satisfaction with its cost-free model and functionality.

- **Firefox:** Reviewers consistently highlight that Firefox is free to use and offers extensive functionality without requiring payment, making it a strong value choice.
- **Opera:** Reviewers appreciate Opera's free built-in VPN and ad blocker, but note that some VPN features require a subscription for full control, which can limit perceived value.

### What are the best alternatives to Firefox and Opera?

The top three alternatives to Firefox and Opera are Chrome Enterprise, Brave, and Microsoft Edge.

| Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength |
| --- | --- | --- | --- | --- |
| [Firefox](https://www.g2.com/products/mozilla-firefox/reviews) | 4.4/5 (509 reviews) | Small-Business | Free to use, praised for value | Privacy Focus |
| [Opera](https://www.g2.com/products/opera/reviews) | 4.2/5 (214 reviews) | Small-Business | Free with optional paid VPN features | VPN Features |
| [Chrome Enterprise](https://www.g2.com/products/chrome-enterprise/reviews) | 4.7/5 (1838 reviews) | Small-Business | — | High reliability and integration with Google ecosystem |
| [Brave](https://www.g2.com/products/brave/reviews) | 4.6/5 (534 reviews) | Small-Business | — | Strong privacy and ad blocking |
| [Microsoft Edge](https://www.g2.com/products/microsoft-edge/reviews) | 4.3/5 (416 reviews) | Small-Business | — | Integration with Microsoft services |

### Which Browser features should I prioritize when comparing Firefox and Opera?

Buyers comparing Firefox and Opera should prioritize privacy and security, extension support, built-in VPN/ad blocking, speed, and customizability.

- **Privacy and Security:** Firefox: 6 all-time mentions for safety/security, 4 for privacy focus, 3 for privacy protection; Opera: 3 all-time mentions for safety/security, 5 for VPN features.
- **Extension Support:** Firefox: 6 all-time mentions; Opera: 1 all-time mention.
- **Built-in VPN/Ad Blocking:** Opera: 5 all-time mentions for VPN features, 3 for ad blocking; Firefox: 2 all-time mentions for ad blocking.
- **Speed:** Firefox: 7 all-time mentions for fast speed; Opera: 3 all-time mentions for fast speed.
- **Customizability:** Firefox: 6 all-time mentions; Opera: 1 all-time mention.

### What are the pros and cons of Firefox vs Opera?

Firefox's headline strength is privacy focus, while Opera's is its built-in VPN and feature-rich environment.

- **Firefox strengths:** Fast speed (7 all-time mentions), customizability options (6), extension support (6), reliability (6), safety/security (6), privacy focus (4), privacy protection (3), security features (3).
- **Firefox trade-offs:** Slow performance (5), tab management (5), browser compatibility (3), limited extensions (3), update issues (3), memory usage (2).
- **Opera strengths:** VPN features (5), ad blocking (3), fast speed (3), safety/security (3), feature-rich (1), reliability (1).
- **Opera trade-offs:** Limited extensions (2), ad complaints (1), browser compatibility (1), memory usage (1), RAM consumption (1), slow loading (1).

### Is Firefox or Opera better for small businesses?

Firefox is the better fit for small businesses, supported by its higher satisfaction scores and strong small-business reviewer sentiment.

- **Firefox:** Largest segment is Small-Business; reviewers highlight ease of use, privacy, and reliability as key benefits for small business environments.
- **Opera:** Largest segment is Small-Business; reviewers appreciate Opera's built-in VPN and productivity features, but note occasional complexity and compatibility issues.

### Which Browser platform has better integrations?

Firefox and Opera are at parity for integrations, as reviewers do not cite significant third-party integration advantages for either product.

- **Firefox:** No specific integrations are highlighted in recent reviews.
- **Opera:** No specific integrations are highlighted in recent reviews.

### How do Firefox and Opera compare on customer support?

Firefox and Opera are at near-parity on Quality of Support, with scores of 8.7 and 8.3 respectively, which is below the materiality threshold.

- **Firefox:** Reviewers describe support as responsive and helpful, with several noting quick resolutions and clear documentation.
- **Opera:** Reviewers mention that support is generally helpful and professional, with some highlighting positive experiences resolving technical issues.

### Which is easier to implement, Firefox or Opera?

Firefox is rated higher for Ease of Setup, with a 9.2 score compared to Opera's 8.7, a difference above the materiality threshold.

- **Firefox:** Reviewers consistently describe setup as easy, quick, and straightforward, with minimal learning curve and fast onboarding.
- **Opera:** Reviewers note that setup is generally easy, but some mention occasional confusion with options and a busier interface during initial configuration.

Alternatives

**Mozilla Firefox Alternatives**

 ![Chrome Enterprise](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_d411eb490c30b3a8eb6bf56f537e4d45/chrome-enterprise.png "Chrome Enterprise")

[
Chrome Enterprise
](/products/chrome-enterprise/reviews)

 ![Brave](https://images.g2crowd.com/uploads/product/hd_favicon/9ff070b8e11f9059f297f646c38022ee/brave.svg "Brave")

[
Brave
](/products/brave/reviews)

 ![Microsoft Edge](https://images.g2crowd.com/uploads/product/hd_favicon/1545072338/microsoft-edge.png "Microsoft Edge")

[
Microsoft Edge
](/products/microsoft-edge/reviews)

 ![Apple Safari](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_3f596abc7b076efa0a4a7890400ebae5/apple-safari.png "Apple Safari")

[
Safari
](/products/apple-safari/reviews)

**Opera Alternatives**

 ![Chrome Enterprise](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_d411eb490c30b3a8eb6bf56f537e4d45/chrome-enterprise.png "Chrome Enterprise")

[
Chrome Enterprise
](/products/chrome-enterprise/reviews)

 ![Brave](https://images.g2crowd.com/uploads/product/hd_favicon/9ff070b8e11f9059f297f646c38022ee/brave.svg "Brave")

[
Brave
](/products/brave/reviews)

 ![Microsoft Edge](https://images.g2crowd.com/uploads/product/hd_favicon/1545072338/microsoft-edge.png "Microsoft Edge")

[
Microsoft Edge
](/products/microsoft-edge/reviews)

 ![Apple Safari](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_3f596abc7b076efa0a4a7890400ebae5/apple-safari.png "Apple Safari")

[
Safari
](/products/apple-safari/reviews)

## Mozilla Firefox vs Opera

When assessing the two solutions, reviewers found Mozilla Firefox easier to use, set up, and administer. Reviewers also preferred doing business with Mozilla Firefox overall.

- Reviewers felt that Mozilla Firefox meets the needs of their business better than Opera.
- When comparing quality of ongoing product support, reviewers felt that Mozilla Firefox is the preferred option.
- For feature updates and roadmaps, our reviewers preferred the direction of Mozilla Firefox over Opera.