Firefox Community Forum

Hi i accidentally adjusted the width of the sidebar too far and now i cant pull it back over. I have tried using the show sidebar button but nothing happens. is there a way to reset the width of the sidebar without having to drag it?

In the previous version of Firefox, my Bookmarks folder was fixed in to the Sidebar so that when Firefox opened the Bookmarks were visible; how do I fix the problem?

Incoming messages on Firefox display is quite small as compared to Microsoft Edge and I cannot seem to enlarge as I do not see a "zoom" icon. When

I highlight the words, they are Arial font size 14 but visually they are not.  How do I zoom and default the window size? Here is a frame shot.

In firefox version 146, How do I change background color of the bar the tabs appear on? I don't want to change the tab color, but only the color of the toolbar where the tabs are located. I've tried several userchrome.css codes I found on the internet, but none of them work.

I am not too sure what exactly causes this (I suspect long periods of inactivity/not interacting with the browser) but when I switch back to one of my firefox windows on my laptop's display (I have my laptop open and connected to an external monitor - so I use the monitor as my main display and my laptop as my secondary display) I get this black border/padding on the side/around my broswer.

See attached images - (might be hard to spot, focus on the sides of the screen). First image is how the browser normally looks like. The 2nd image is with the random black border/padding.

How do I stop this from happening? I've tried looking online for someone else havig the same issue but cannot seem to find anything.

I recently got a large (30") 4k monitor because I have been having trouble reading text. But Firefox has become practically unusable.

Some sites display with giant text, and I have to press ctrl-minus several times to fit them on the screen.

Meanwhile, the text in the Bookmarks bar, tabs, and URL window are unreadably small.

I tried about:config and layout.css.devPixelsPerPx, which currently seems to have a NEGATIVE value of -1.5. Per directions, I changed it to 1.5. NOTHING. NO CHANGE.

Then I found an endless series of possible fixes, all involving similarly opaque and obscure and user-unfriendly steps.

I might have to abandon Firefox, after all these years, over this. Anybody got a simple fix?

(I now see that I'm actually having the same problem in Windows Explorer, so maybe that's where I need to go to fix this.)

Thanks!

The scrollbar slider isn't displaying correctly. If I grab the screen, zoom in, and look very carefully, it is possible to see that the slider is a very slightly different darker shade of grey to the rest of the scrollbar, but it's almost impossible to see, so something is clearly not working properly here. The scrollbar should be highly visible as it's the most often-clicked control of the entire browser.

When you move your mouse to the top of the screen in F11 mode, the searchbar / tabs pop up. This is highly irritating behavior, since if I'm in F11, I specifically do not want to see them. I would like to disable this behaviour somehow, the few userChrome.css solutions that came up in googling either didn't do what I wanted or didn't do anything at all.

For some reason, after a restart everything in the Firefox Gmail window suddenly increased in size --- the print, symbols, everything. See pic below. I don't know if is a Firefox or Gmail problem.

Any help you can give will be greatly appreciated!

12/10/25 am my yahoo bookmarks are opaque. they are still there just not visible until you click on them. Later 12/10/25 I rolled back firefox to earlier time and all looked correct again. today 12/11/25 opaque bookmarks again.

Bonjour,

A chaque demarrage de firefox, la taille des fenetres retaurees se reduit. L'environnement est du KDE Plasma X11 sur une Debian 12. La methode est simple: Ouvrir firefox. (Mode restauration de la session precedente active) Quitter firefox. Reouvrir firefox. La fenetre se reduit a la retauration des pages.

Comment remedier a cela? J'ai deja tenter avec un nouveau profil. Le probleme persiste.

Cordialement.