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Firefox as a Linux alternative to Mozilla Firefox

Updated

Our verdict

Firefox on Linux is the same product as the Windows version, so it is an excellent replacement for users who want the same features, performance, and privacy controls on a Linux desktop. It works well for developers, power users, and everyday browsers, providing fast page loading, strong tracking protection, and full add‑on support.

Feature parity90%
License
MPL-2.0
Price
Free
Latest version
158.0.1 (October 19, 2026)
Rating
—
Firefox screenshot

What works the same

  • Fast page loading
  • Strong privacy controls and tracking protection
  • Full add‑on ecosystem
  • Cross‑platform sync of tabs, history, and settings
  • Open‑source license (MPL‑2.0)

What is different

  • No native Windows‑only extensions that rely on COM or ActiveX
  • Some Windows‑specific integration features (e.g., Windows Hello for Firefox) are not available
  • Certain Windows‑only themes or UI tweaks may differ
  • Firefox on Linux uses GTK on GNOME or Qt on KDE, affecting look and feel
  • The Windows installer includes a bundled updater that is not present on Linux

Opening your Mozilla Firefox files

Firefox on Linux can open and export bookmarks, passwords, and history from the Windows profile by copying the profile folder (usually located in %APPDATA%\Mozilla\Firefox) to the Linux profile directory (~/.mozilla/firefox). The import/export tools are identical, so no special steps are needed beyond copying the data.

Switching from Mozilla Firefox to Firefox, step by step

  1. 1. Install Firefox from your distribution’s package manager or Flathub.
  2. 2. Launch Firefox once to generate a default profile folder.
  3. 3. Copy the Windows profile folder (e.g., C:\Users\<user>\AppData\Roaming\Mozilla\Firefox) to the Linux profile directory (~/.mozilla/firefox).
  4. 4. Rename the copied profile folder to match the new profile name or set it as default in about:profiles.
  5. 5. Restart Firefox and verify bookmarks, passwords, and extensions are present.

Key features of Firefox

  • Fast page loading
  • Strong privacy controls
  • Customizable UI
  • Extensible with add‑ons
  • Cross‑platform sync
  • Open source
  • Regular security updates

How to install Firefox on Linux

Flatpak (Flathub)flatpak install flathub org.mozilla.firefox
Ubuntu / Mintsudo apt install firefox
Debiansudo apt install firefox-esr
Fedorasudo dnf install firefox
Arch / Manjarosudo pacman -S firefox-i18n-es-mx
openSUSEsudo zypper install MozillaFirefox

Frequently asked questions

Will my extensions work on Linux?

Most extensions that rely only on web APIs work on Linux. Those that use Windows‑specific APIs (e.g., COM) will not.

Can I sync my data across devices?

Yes, Firefox Sync works the same on Linux, syncing tabs, history, bookmarks, passwords, and settings.

Is Firefox on Linux as fast as on Windows?

Performance is comparable; on many Linux systems it can be faster due to native rendering engines and fewer background services.

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