{nav icon=home, name=Main Page > icon=info-circle, name=PureOS > icon=list-ul, name=Tips & Tricks > Latest Firefox} Install latest versions of Firefox from Mozilla --- Open `Terminal` and copy and paste below commands into it: * Add repository: ``` sudo tee /etc/apt/sources.list.d/mozilla.list << EOF deb https://packages.mozilla.org/apt mozilla main EOF ``` * Download the key: ``` wget "https://packages.mozilla.org/apt/repo-signing-key.gpg" -O mozilla.key ``` * Convert it to gpg: ``` gpg --no-default-keyring --keyring ./mozilla_keyring.gpg --import mozilla.key gpg --no-default-keyring --keyring ./mozilla_keyring.gpg --export > ./mozilla.gpg ``` * Move it to the apt folder: ``` sudo mv -v mozilla.gpg /etc/apt/trusted.gpg.d/ ``` NOTE: You can remove the `mozilla_keyring.gpg` file from your home directory after that. * Update package list to include new sources and install Firefox browser: ``` sudo apt update && sudo apt install firefox ``` To install a language pack: ``` sudo apt install firefox-l10n-XX ``` Replace `XX` with language code, for example: `fr` for French. NOTE: You can also install testing/nightly version, but these are considered unstable. The default Firefox package from PureOS: `firefox-esr` (ESR stands for **E**xtended **S**upport **R**elease) can coexist with the latest version you will install from Mozilla, as it is using separate user profile. You can remove the "ESR" version later: ``` sudo apt remove firefox-esr firefox-esr-l10n-* ``` If you want to import your bookmarks, passwords, and other data from your "ESR" profile to the new Firefox version, you can follow the [official guide](https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile) from Mozilla website.