Switching from Chrome to Firefox: What's Different and How to Adapt
Most of Firefox just works the way you'd expect if you're coming from Chrome. A few things are different. Here's what to know.
Tab Groups (Chrome Has Them, Firefox Doesn't)
Chrome's tab groups let you color-code and collapse sets of tabs. Firefox doesn't have a built-in equivalent — this is the feature Chrome switchers miss most.
Workaround in Firefox:
Session-based approach: Instead of grouping open tabs, save different contexts as named sessions using Tab Manager & Session Saver. Keep only your current project's tabs open; everything else is saved and restorable instantly. Cleaner than groups, but a different mental model.
Firefox Containers: Firefox has containers (via the Multi-Account Containers extension) which are closer to workspaces than groups — each container gets isolated cookies, and you can color-code them. Not the same as Chrome's visual groups, but more powerful for context separation.
Wait for Firefox: Tab groups are on Mozilla's roadmap. They may land in a future Firefox version natively.
Extensions
Firefox has an extensions ecosystem (AMO — addons.mozilla.org) that's separate from Chrome's Web Store. Most popular Chrome extensions have Firefox equivalents, and Firefox-exclusive extensions exist too.
Notable differences:
- Firefox still supports Manifest V2 extensions. Chrome is phasing these out, which limits ad blocker capabilities (uBlock Origin works better in Firefox as a result).
- Extension permissions are slightly different — Firefox shows permissions at install time and uses a similar but not identical permission model.
- Some niche Chrome extensions haven't been ported.
Check compatibility: If you have a specific Chrome extension you rely on, search AMO for it. Most popular ones (uBlock Origin, 1Password, LastPass, Bitwarden, Vimium, etc.) exist on both.
Sync
Chrome syncs via Google account. Firefox syncs via Firefox account (accounts.firefox.com) — a separate Mozilla account.
You can sync:
- Bookmarks
- History
- Passwords
- Open tabs (across devices)
- Extensions
- Settings
The sync is cross-platform (Windows/Mac/Linux/Android/iOS) and end-to-end encrypted.
Migration: Firefox can import bookmarks and history from Chrome directly. Go to Bookmarks → Import Bookmarks from Another Browser (or from an exported HTML file).
Developer Tools
Firefox DevTools are comparable to Chrome DevTools. A few differences:
- Firefox has a unique CSS Grid Inspector and Flexbox Inspector — visual overlays that show grid/flex layouts on the page. Chrome's are less detailed.
- Performance profiler: Firefox's profiler (devtools or profiler.firefox.com) is different from Chrome's. The Firefox profiler is generally considered better for JavaScript profiling; Chrome's is better for rendering/paint profiling.
- Debugger: Both are solid. Firefox's debugger has slightly different UI but the same core features.
- Network tab: Both show the same information. Firefox's HAR export is slightly easier to access.
If you do frontend development, Firefox DevTools are worth learning even if you primarily use Chrome — the CSS tools are genuinely better.
PDF Viewer
Both browsers have built-in PDF viewers that work well. Firefox's viewer is solid for basic reading; Chrome's has slightly more features for annotations. For most users, either is fine.
Performance
Firefox has improved substantially in recent years. On most workloads, Firefox and Chrome are comparable in speed. Firefox often uses less memory with many tabs open, partly because of its multi-process architecture.
Some benchmarks favor Chrome; others favor Firefox. The real-world difference is small enough that it shouldn't be the deciding factor.
What Firefox Does Better
- Privacy defaults: Enhanced Tracking Protection on by default. Chrome's defaults are more permissive.
- Containers: Cookie isolation per context — not possible in Chrome without hacks.
- Extension power: MV2 extensions still work, meaning uBlock Origin runs at full capability.
- CSS DevTools: Better grid/flexbox visualization.
- Open source: Firefox is fully open source. Chromium is open source; Chrome is not.
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