Firefox Beta for Android finally lets you install any browser add-on, with a little catch
You will need to create a collection of custom add-ons
About two years ago, Mozilla Firefox released its big mobile overhaul for what is one of the best mobile web browsers you can get for your phone. While the new version works better and looks better than the hopelessly outdated version that came before it, there is one caveat attached to the redesigned Firefox that has stuck around until now. You can only install a limited number of pre-approved extensions. Firefox introduced an option to get any add-on you might want on the nightly build in 2020, but the developers never promoted this capability to beta or even stable. Firefox Beta 107 finally changes that and offers the ability to install more than the pre-approved extensions.
As noted by GHacks, you’ll still need to rely on a workaround to get all the extensions for your version of Firefox for Android. You must create custom add-on collections on the Firefox Add-ons website with a selection of extensions that you must manage manually. To do this, a Firefox account is required. Then you need to go through a few more steps on the mobile browser to access your curated list. You need to enable the debug menu by heading to Settings -> About Firefox Beta then repeatedly tap the Firefox icon. Then a new Collection of custom add-ons appears in the settings, which you can import into your Firefox by adding the user ID (found in your collection URL) and the name you gave it.
Mobile websites often behave differently from the desktop sites you visit on your computer, however you may encounter incompatible or strange extensions. That’s probably why Mozilla stuck with this small, curated list of extensions that are known to work well on mobile in the first place, rather than confronting inexperienced users with broken add-ons. It’s always a shame that you need to go through so many extra steps as someone aware of the risks and issues associated with Firefox add-ons on mobile.
Two years after the redesign, extension support still isn’t back as we know it on Firefox for Android, but it looks like Mozilla is finally taking steps to change that. With the functionality promoted in beta, we hope that soon it will be able to activate it also in the stable version of the browser.