Firefox Community Forum

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?

As the question stated I have navigated to my mozilla profile folder, ( C:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\pw1dnvcy.default-release ) but there is no file called persdict.dat. I have ensured all file name extensions are visible, & none are hidden in windows file explorer (Win 10). I am at al loss I cannot figure this out.

When I want to access a site, I am told JavaScript needs to be enabled for access. In checking I am told JavaScript is already enabled. To check it, I should about:config in Firefox mobile and toggle JavaScript to true if it is shown as disabled. However, when I do that I am blocked for safety reasons. I want to know what's happening here with JavaScript and Firefox mobile.

We want to use Firefox on a locked down system where the user will not be able to go to other websites. We looked at using Kiosk mode, but we want to allow tabs. How can we hide the address bar before the browser is opened and without registry changes?

I do not and will not use the sidebar/vertical tabs features.

Unfortunately, it seems that firefox has decided to reactivate these features with an update? This is unacceptable. I do not want my settings to be altered with a software update. If firefox wants to tell me about a new feature, feel free to make a dialogue bubble pop up (once) asking if I'd like to explore said new features. Otherwise, please refrain from altering my preferred configuration without permission or notification. Doing so is completely asinine at best and shows open contempt for your customer base at worst.

I do not wish to give mozilla/firefox another opportunity to make my experience worse, thusly I ask: Is there anyway to entirely remove/disable the sidebar/vertical tabs feature from the browser so that it cannot be reactivated without the specific actions of the user?

When I click on Bookmarks, all I see are the following:

Manage bookmarks Bookmark current tab Bookmark all tabs

Bookmarks Toolbar Other bookmarks

What happened to the entry that shows my bookmarks ?

I'm baffled by the statement of my Browser being managed by my organization since I am a single, non connected entity and have no organization, nor do I want one. I want control since I'm the one paying for it's use. Can you explain how to return control to me and only me? Thanks, KG

For some reason Firefox remembered my phone number and is now trying to use it as a login when I attempt to login or register in any service. I've checked my saved passwords and autofill data, but I cannot find it, there's only usernames and passwords, and I have no saved autofill data, no phone number. Where can I look for it to remove it?

On various websites with embedded podcasts, when the file goes past 1h the volume 'slider' goes away and becomes a basic mute/unmute button. How can i force Firefox to always display the volume slider?

Translation languages related issues. Firefox doesn't contained all the languages to translate page. This is a big mistake by your developer. Now a days most of browser translate pages into Hindi and Gujarati language. Fix this or I've to go back to use Google Chrome browser as before.

Hi, I have all kinds of ad blockers in my Firefox and today I logged into my music only to have ads coming in one after another. This happened once before a couple of years ago and some how after I complained the ads disappeared again. Now I need the same help.

Thank you, Tom Murray