Firefox for Android Community Forum

So, I noticed that the default font Firefox uses on Android when nothing is specified is a sans-serif font. But I would like to use serif.

I've already seen an answer to change the values of "font.name.sans-serif.x-unicode" and "font.name.sans-serif.x-western" in about:config (also "font.name.sans-serif.x-user-def", but that must have been removed, nothing shows up when I search it), but I haven't gotten it to work. I assume I'm not inputting the right value. What should I set as the value to get it to use a serif font? Or is there another way I should do this?

I use nav bar at bottom and with old menu having reload, back, forward all at the bottom of menu, it meant that I could use Firefox single handedly.

Now with the new menu design which is very nice and shiny (well done), all common actions are on top of menu, close to mid- top of the screen. This makes it hard or awkward to use it worth one hand.

Is it possible, to have the layout of menu adjusted when nav bar is at the bottom?

Hi. I have some feature requests for Firefox for Android.

- pos of the address bar when typing: The feature to change the position of address bar is useful. But other search bars and the suggestions are still on the top. While putting the address bar makes it easy to access, it confuses my eye movements. I think there should be an option to change the address bar when typing. - shortcuts: I'm using a Samsung Galaxy phone and they have a feature to set some shortcuts like forward and search in app to an action. On this point, Firefox is inferior than Chrome for me. Chrome supports these shortcuts.

please, add an option in the settings to enable/disable the menu redesign (the one for the three dots menu thingy) i just cant stand looking at this new design. i miss the old one a lot.

hey, have a little issue: it seems i'm not able to change the app icon (android). i've followed the instructions found in https://support.mozilla.org/es/kb/customize-app-icon-firefox-android ; updated the app at the store, rebooted my device and finally (the problem persisted) uninstalled and installed again Firefox app. still nothing, the option does not appear. i'm adding an scrrenshot. very thank you.

We need to add customization to the bottom panel located under the search bar, as well as the ability to set any wallpaper on the home screen and add a black AMOLED theme for the browser

The old menu is more user friendly and everything shows up. Unlike the new menu where you have to search for stuff. Please incorporate an option to choose between menus.

Today is February 24th 2026. Sometime today Firefox (Android) just updated itself. Now there's stuff on top, there's stuff on the bottom, (home page, tabs) and I don't care for it very much. How do I go back to the previous version?

A "dead" vertical space appears at the bottom of the viewport, pushing site navigation and sticky banners (like "Get started") upward. This occurs globally across different websites, not just one.

Currently using android 15, can i hide hide this in firefox's setting? If not, please mozilla, add an option to hide the background behind the bar, it's sucks. I did research and found that it is an app issue and not an OS issue, thanks

I beg you, just add an option to revert. Why, why are you even doing the redesign?? I would happily use your browser forever anyway, please, add an option to revert! I really don't want to move to Chrome, but the new design is so hideous I can't stand it

I’m using Firefox on an Android tablet in PC mode, paired with a keyboard and mouse. To enhance the desktop experience, I’ve switched the tab view from grid to list. However, I can’t enable full-screen mode for the entire app, something I can do on Firefox Desktop. On YouTube, videos automatically switch to full screen when I enter full-screen mode, but this feature seems missing for the browser itself. Maybe the full-screen option isn’t available in the settings.

I find myself looking for insecure workarounds to make the support page dark. I want to visit the site, but am avoiding it due to the blinding nature of it... Right now, I'm suffering through it to hopefully find a way!

Mozilla has been a lifesaver, this is just a suggestion, throwing it out there is all!

Thanks, Nick

Could you make a shortcut to switch on between "dark mode" and "bright mode" in the mobile app browser + pc desktop browser?

There are enough webpages that don't show correctly in dark mode. It is not convenient to change the dark mode each time in settings!

Thank you

I found a UI bug in Firefox for Android on Nothing Phone (1).

Device: Nothing Phone (1) Android version: 15 Firefox version: 150.0.1 (Build #2016157687), 094f3362dcbc efdce34f05b355607cdce06a4ef4 GV: 150.0.1-20260427013024 AS: 150.0.1

Steps to reproduce: 1. Open Firefox on Android. 2. Tap the private browsing icon/tab switcher. 3. Observe the screen layout.

Expected result: The UI should remain stable without moving.

Actual result: The whole interface slightly shifts downward after pressing the private browsing icon.

The issue is visible in the attached screenshots.