Firefox Community Forum

Dear all,

I just found that in Firefox 139 for Android the menu buttons "Install" and "Add to Home Screen" disappeared. I tried deleting the cache, reinstalling, restarting the smartphone. I tried different websites, included well-known PWA apps (i.e. https://github.com/mdn/pwa-examples ).

I'm on Lineage 22.2.

The community guides still report the availability of this feature: https://mzl.la/3p7ltJx

Am I missing something?

Example with facebook.com in the images. Note that on x.com a popup asks me if I want to installa the app version of the website, but the menu options are still missing. It's only website I found where that popup shows up.

I'm having some trouble with automatic translations on firefox. I don't know if It's exclusive of firefox, but some websites, mostly wikis, open a "translate" field that automatically creates a new website, wich causes the images and some other stuff on the website to break. I tried disabling the translation on about:config off, as show in some other questions, but it did not work. This is being really annoying because it keeps breaking websites unless i get to the original link.

I have the box ticked in Settings for previous tabs to be installed on Startup but it isn't happening although it used to. I was trying to get rid of caches (what are they?) and must have done something.

The recommended methods, changing to this in the registry :

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\Certificates] "ImportEnterpriseRoots"=dword:00000000

Reverts back to 00000001

Put this policies.json and did nothing: {

 "policies": {
   "Certificates": {
     "ImportEnterpriseRoots": false
   }
 }

} What am I missing or what's changed?

My specific need at the moment is to add another search engine option in about:preferences#search

Thanks.

When I launch the browser, can I not preload tabs that I have not used yet in this session, but which are open from the previous one? This is slowing down my weak PC. I did not find anything about this either on the Internet or in the reference book. Thanks in advance for your answer

I tried to add the roboform browser extension twice and I get the following message (the second time was from the Roboform homepage):

Installation aborted because the add-on appears to be corrupt. Preview of RoboForm Password Manager RoboForm Password Manager by Siber Systems Recommended

RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically Add to Firefox

Firefox 139.0.1 (64-bit) on Windows 11

I occasionally increase the zoom level of websites (usually forums) with Ctrl+mouse wheel if the default text size is too small. However, if I forget to set them back to 100% (Ctrl+0) before closing the tab, the next time I open that URL, it's at the former adjusted zoom level -- not 100%. Really annoying.

How do I force Firefox to open all URLs at 100% regardless of the last custom zoom level? I have default zoom already set to 100% in Settings and Zoom Text Only is not enabled.

Thanks.

Back around February (2025), the full screen mode by pressing F11 quit working. Clicking the diagonal two pointed arrow in the application menu didn't do it anymore either. Both actions only toggle the bookmark bar. I've tried reinstalling, and waiting for further updates. So far, still no luck. I've since moved on to using another browser, since I often want this feature. Does anyone have the same problem or know how to fix this?

I'm currently on Firefox Nightly on desktop running the latest version. I wanted to know how to turn my Firefox Tools icons back from just having icons at the bottom to the list of icons with their names like before. I've attached both images, one from another computer running an older version of nightly which is what I want to return back to.

If there isn't a way to change it back, I would like to suggest this as an option to be able to easily turn back to a list type.