Chrome is the default for most people, but Firefox is still the strongest mainstream alternative in 2026, and in a few areas it is clearly ahead. The biggest reasons to switch are better ad blocking now that Chrome has dropped classic extensions, stronger privacy defaults, and a browser engine that does not belong to Google. Firefox is not perfect, and Mozilla has made some unpopular moves, so here is a balanced look at both sides.
1. Ad blockers still work at full strength
This is the biggest practical difference in 2026. Google moved Chrome to a new extension platform called Manifest V3 and finished disabling older Manifest V2 extensions for regular users in mid 2025. The popular blocker uBlock Origin stopped working in Chrome as a result. Its developer offers uBlock Origin Lite for Chrome, but he has said it is too different to be an automatic replacement, and power users lose features such as some advanced and cosmetic filtering.
Firefox took a different path. Mozilla supports Manifest V3 for compatibility, but it has said it will keep supporting Manifest V2 for the foreseeable future and promised at least 12 months of notice before any change. Firefox also keeps the blocking webRequest feature that strong content blockers rely on. In practice, the full uBlock Origin still runs in Firefox exactly as intended.
2. Better privacy out of the box
Firefox turns on Enhanced Tracking Protection by default, blocking many known trackers, cryptominers and fingerprinting scripts. Total Cookie Protection, also on by default, keeps each site’s cookies in a separate jar so advertisers cannot easily follow you from site to site.
Since March 2026, Firefox also includes a free built in VPN with 50 GB of data per month. It covers browser traffic only, not your whole device, and rolled out first on desktop before arriving on Android in July 2026 in supported countries, including the US. Chrome has nothing comparable for free.
3. It is not built on Google’s engine
Nearly every other major browser, including Edge, Brave, Opera and Vivaldi, is built on Chromium, the open source project Google leads. Firefox uses Mozilla’s own Gecko engine. Safari’s WebKit is the only other big independent engine, and it is mainly tied to Apple devices.
That independence matters even if you never think about engines. When one company controls the code most browsers run on, it has outsized influence over web standards and extension rules. The Manifest V3 change is a clear example of a decision that spread to many Chromium browsers at once.
4. Real extensions on Android and deep customization
Chrome for Android does not support extensions at all. Firefox for Android does, so you can install uBlock Origin, Dark Reader and other add ons on your phone. On desktop, Firefox lets you rearrange the toolbar, use vertical tabs and tab groups, and tweak hundreds of advanced settings through the about:config page.
Manifest V2 and V3, full uBlock Origin, add ons on Android.
Tracking Protection and Total Cookie Protection on by default.
Free browser VPN with 50 GB a month.
Optional features plus one switch to block them all.
5. You control the AI features
Like every browser maker, Mozilla has added AI tools. Firefox offers an optional chatbot sidebar that can use ChatGPT, Claude, Copilot, Gemini or Mistral, along with link previews, AI assisted tab grouping, on device translations and AI generated alt text in PDFs. Many users did not want any of this, and Mozilla responded. Firefox 148, released in February 2026, added an AI controls section in settings with a Block AI enhancements switch that turns off current and future generative AI features and hides related prompts. Your choice carries over across updates.
The other side: Mozilla’s controversies and Firefox’s weak spots
Switching is not all upside, and it is fair to know the criticisms.
- Terms of use backlash. In February 2025 Mozilla introduced formal Terms of Use for Firefox. The original license wording alarmed many users, and within days Mozilla rewrote it to state that it gains no ownership of your content. It also stopped making a blanket promise that it never sells user data, explaining that some state privacy laws define a sale very broadly.
- Ads and sponsored content. Firefox shows sponsored shortcuts and stories on the New Tab page by default. You can switch them off in settings.
- Dependence on Google money. Google pays to be Firefox’s default search engine, and that deal funds much of Mozilla’s work. A 2025 US court ruling in the Google search antitrust case allowed such default search payments to continue, but the dependence remains.
- Compatibility. Most sites work perfectly, but a few web apps are built and tested mainly for Chromium, and occasionally a feature misbehaves in Firefox.
- Google integration. If your life runs on a Google account, Chrome’s sign in and sync are more seamless.
FAQ
Is Firefox more private than Chrome?
By default, yes. Firefox blocks many trackers and isolates cookies out of the box, while Chrome relies more on settings you have to change yourself and on Google’s own ad systems.
Does uBlock Origin still work in Firefox?
Yes. The full version runs in Firefox on desktop and Android. In Chrome only the more limited uBlock Origin Lite is available.
Can I turn off AI in Firefox?
Yes. Open Settings, find the AI controls section and turn on Block AI enhancements. You can also disable individual features one by one.
Is Firefox slower than Chrome?
For everyday browsing most people will not notice a meaningful difference. Performance varies by site and device, so the best test is to use Firefox for a week.
The verdict
Firefox is the best choice in 2026 for anyone who cares about ad blocking, privacy and an independent web. Mozilla’s terms of use stumble and its AI push gave fans reasons to grumble, but the AI off switch and full extension support show it still listens. If you lean heavily on Google services, Chrome remains more convenient, yet Firefox is easily worth a try.
Updated October 2026: rewritten with the current state of Manifest V3 and uBlock Origin, Firefox privacy features, the built in VPN, AI controls and Mozilla’s 2025 terms of use changes.
Featured photo: Rubaitul Azad on Unsplash.
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