Firefox suits people who want tracker blocking on by default and a say over which AI tools, if any, appear in their browser. Chrome suits people who want Google's AI, Lens, Translate and Drive built in and already live in a Google account. Pick Firefox for control, Chrome for Google's tools.
These two have been compared for years, but both have changed a lot since then. I read Google's Chrome pages and Mozilla's Firefox pages, including Mozilla's own Firefox vs Chrome page, so you'll see whose claim is whose.
Chrome against Firefox in one table
| Chrome | Firefox | |
|---|---|---|
| Made by | Mozilla, which says it isn't owned by shareholders | |
| Tracker blocking | Safe Browsing warns about malware and phishing | Blocks trackers automatically by default |
| Cookies across sites | Not covered on the Chrome pages I read | Total Cookie Protection keeps cookies on the site that set them |
| AI in the browser | Gemini in Chrome, AI Mode, Skills | Optional; choose from several AI chatbots or turn AI off |
| Extensions | Chrome Web Store (not counted on the page) | Over 30,000 extensions |
| Built-in extras | Google Lens, Translate, Drive, Cast | PDF editing, reader mode, picture-in-picture |
| Older systems | Not stated on the pages I read | Not supported on Windows 8.1 or macOS 10.14 and below |
Where Chrome is strongest
Chrome's pages read like a tour of Google's services. Gemini in Chrome answers questions using your open tabs and browsing history, AI Mode puts Google's AI search in the address bar, and Google Lens lets you search anything you see on screen. You can translate a whole page in one click, caption audio in near real time, and open Google Drive files straight from the search bar.
For safety, Chrome has Google Password Manager, Safe Browsing warnings for malware and phishing, and a Safety Check. Tab groups and Memory Saver help when you've got dozens of tabs open, and Google ships a new version every four weeks.
Where Firefox is strongest
Mozilla calls Firefox the independent browser and says it doesn't sell your personal data and never will. Trackers are blocked automatically with no setup, and Total Cookie Protection stops cookies following you from one site to the next.
The other big difference is AI. Firefox says its AI features are optional by design and will stay that way, and you can pick from several AI chatbots or switch them off completely. You also get over 30,000 extensions, PDF editing in the browser, tab groups, Firefox View and a sidebar you can arrange yourself.
What Mozilla says about Chrome's defaults
This is the insight that surprised me. On Mozilla's Firefox vs Chrome page, it says Chrome by default watches which sites you visit to pick out ad topics, and that you can block individual topics but can't stop it identifying new ones. That's Mozilla describing a competitor, so weigh it with that in mind, but it's a specific claim you can check in Chrome's own privacy settings.
Switching is quick, too. Mozilla says Firefox imports your Chrome bookmarks, passwords, history and preferences in one click.
Firefox also syncs your tabs, history and passwords across desktop, mobile and tablet, and Mozilla says that data is encrypted by default, so it isn't tied to one platform. Chrome's version of that is your Google account: sign in and your passwords, history and Drive files follow you, with Google Cast built in for sending a tab to your TV. If you rely on screen readers or magnifiers, Chrome's features page lists support for both, plus full-page zoom and AI image descriptions.
Which browser suits which person
Firefox suits people who'd rather choose their own AI tools and want privacy protections on from the start. Chrome suits Google Workspace users and anyone who leans on Gemini, Lens and Translate every day. Whichever you use, these browser extensions are worth adding, and if privacy is your main worry, my piece on whether Tor Browser is safe covers the next step up.
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My advice on Chrome or Firefox
Ask yourself how much of your day runs through Google. If it's most of it, stay in Chrome and spend ten minutes in its privacy settings so you know what it's doing with your browsing. If you'd rather not think about settings at all, install Firefox, let it import everything from Chrome, and use it for a week. You'll know by Friday whether you miss Google's tools.
Do you make browsers or browser extensions? Tool makers can ask to be considered for a featured place in comparisons like this one.
Frequently asked questions
Does Firefox block trackers by default?
Yes. Mozilla says Firefox blocks trackers automatically by default, with no setup.
Can I move my Chrome passwords to Firefox?
Yes. Mozilla says Firefox imports your Chrome bookmarks, passwords, history and preferences in one click.
Does Firefox have AI features?
Yes, but Mozilla says they're optional by design. You can choose from several AI chatbots or turn AI off entirely.
How many extensions does Firefox have?
Mozilla's Firefox page says there are over 30,000 extensions.
Does Firefox still work on Windows 8.1?
No. Mozilla says Firefox is no longer supported on Windows 8.1 and below and offers Firefox ESR instead.
