Firefox
Firefox is a popular, open-source web browser.
Installation
To install Firefox, firstly enable the Community repository, then type in the terminal:
For the Extended Support Release (ESR) (firefox-esr):
# apk add firefox-esr
For the current release (firefox):
# apk add firefox
Alternatives
The Alpine packages does not disable most telemetry and similar tracking shipped by upstream. Consider using librewolf, a privacy-centric fork which disables Mozilla's first-party spyware and analytics:
# apk add librewolf
Stability
If tabs crash, then try disabling hardware acceleration, in the Preferences - Performance menu.
Notifications
For Firefox to use native notifications (e.g.: via a notification daemon) the libnotify package is required.
DRM content using Widevine workaround
To play DRM content (Spotify and other streaming websites) you will have to manually set it up. You will need:
GMP sandbox needs to be disabled on launch:
# MOZ_DISABLE_GMP_SANDBOX=1 firefox
Now open about:config and enable media.gmp-widevinecdm.enabled and media.gmp-widevinecdm.visible.
Open a DRM Stream test to load the plugin then patch the library:
# patchelf --add-needed libgcompat.so.0 ~/.mozilla/firefox/*/gmp-widevinecdm/*/libwidevinecdm.so
Finally, reload the page and it should be working (see sources below).