Browser comparison

Mozilla Firefox vs Vivaldi

Compare Mozilla Firefox and Vivaldi on privacy, speed, AI features, extensions, engines, platforms, and daily workflow fit.

BrowserGeek frog mascot balancing two browser choices.

Mozilla Firefox

Gecko on Mac, Windows, Linux, iOS, Android

Mozilla Firefox is a Gecko-engine browser for Mac, Windows, Linux, and more. Its strongest BrowserGeek scores are privacy, speed, extensions.

Vivaldi

Blink on Mac, Windows, Linux, iOS, Android

Vivaldi is a Blink-engine browser for Mac, Windows, Linux, and more. Its strongest BrowserGeek scores are privacy, speed, extensions.

ScoreMozilla FirefoxVivaldi

Privacy

4/5

Speed

4/5

AI

2/5

1/5

Extensions

5/5

4/5

Customization

5/5

Ease

4/5

3/5

BrowserGeek pick: Mozilla Firefox

Mozilla Firefox has the stronger combined privacy and speed score in this comparison. If your priority is AI, extensions, or a specific platform, check those rows before deciding.

Feature differences

FeatureMozilla FirefoxVivaldi

Private search Yes No

AI chat No No

Tracker blocking Yes Yes

Blocks targeted ads No Yes

Cookie pop-up blocking No Yes

Cleaner YouTube ads No Yes

Password manager Yes Yes

Email tracker blocking Yes Yes

One-tap erase Yes Yes

Data broker removal Paid No

Identity restore help No No

Built-in VPN Paid Yes

Workspaces No Yes

Split view No Yes

Vertical tabs No Yes

Fingerprinting protection Yes No