I-Firefox Community Forum

Each time I open Fire Fox, the window in NOT FULL ... I need to select the either F11 or the diagonal with arrow endpoints.

Surely there is a default settings that opens Fire Fox to full window allowing selection of website icons.

When you right-click on a window thumbnail, a menu should appear, but instead the window thumbnail just disappears. The screenshots show 1) a Firefox mini-window 2) a mini-window that just disappeared when you right-click 3) a mini-window of any other program 4) the menu that appeared is as it should be Otherwise the browser works absolutely fine for a long time. But this problem causes a lot of inconvenience because I have 2 monitors.

Hello there,

During my quest of trying to get macOS and apps to look more like I want, I haven't found any answer online on how to modify the rounding of Firefox corners to be square. I have also heard that Firefox has a known bug of not respecting system appearance, so I have decided not to mess around with important system files. So my question is: What would be your recommended way to square the window corners for macOS?

I'm not sure when it started (this week maybe?), but I've been noticing a small graphic appear to the right beside the Firefox icon when I hover over it. The same graphic also appears when hovering over Thunderbird's icon. Does not appear when hovering over any other icon on my task bar. It appears whether I am connected to the internet or not. I ran Malwarebytes latest build antivirus, which found nothing. Any ideas what this graphic is and/or what is it for?

I've made a screenshot, which I'll attach.

Running Firefox 133.0.3 64-bit, on Windows 11 Home (Build 22631.4602) , using DuckDuckGo as the search engine. The version of Thunderbird I'm running is: 128.5.2esr 12th Gen Intel(R) Core(TM) i9-12900K 3.20 GHz

Firefox 140 I use Tree Style Tabs for my tabs, and have for a long time. I updated to 140 and now, at the top of the sidebar is "Tree Style Tab X". Clicking X closes Tree Style Tab and the sidebar. My question. Is there a way to not have Tree Style Tabs and the top of the sidebar, but return to "BookmarksHome" which was at the top previously? Appreciate any help or ideas.

FF147.0.1 64bit Linux

I have about:config > toolkit.legacy ... stylesheets set to true, but how can I determine if FF actually 'loaded' the file <profile>/chrome/userChrome.css ?

Alternatively, is there a css tweak that is known to still be working in FF147?

I really do not like the new menu / toolbar in firefox nightly. I guess I hadn't really noticed the changes until now. But it takes up half the page of my browser. Who thought this was a good idea? - to put it smack dab in the middle of the page?! Not me, that is for sure! Ok. So can we see a normal toolbar/ menu bar/ and optional toolbar at the top of the page, please? I like things the way they were. With various options to add buttons and pages or things that we need?? My toolbars were stacked appropriately in roles, with everything I needed on them. And they were always in the same place. Not moving around like toys on the floor. Please, please bring back the old toolbars for this old cranky punk chick. Thanks!! Love Firefox, stop messing with it. 💗💗💗😸😸

Hello, Since the update on 24 June 2025, bookmarks are displayed in black text on a black background. Is this normal? If not, how can I resolve the issue? I had set it to dark mode, but even when I switched back to light mode, nothing changed. I would appreciate help from the community or Mozilla if anyone has a website address to contact them. Have a nice day.

Hallo, ich arbeite gerne mit geöffneter Sidebar und bisher (bis Firefox-Version: 139.0 waren sowohl die Ordner der Sidebar, wie auch die in Ordnern abgelegten Webseiteneinträge immer in weißer Farbe (vor dunklem Hintergrund). Jetzt nach dem Update von Firefox auf Vers.: 140.0 ist der Hintergrund der Sidebar 'dunkelgrau' und die Schrift der Ordner und Webseiteneinträge sind in schwarzer Farbe, sodaß man diese nicht mehr richtig sehen kann; lediglich die Icon's der Webseiteneinträge sind in der entsprechenden Farbe/Logo der Webseite korrekt zu sehen. Liegt das jetzt am Update von Firefox 139.0 auf 140.0 ?? Die Sidebar war bis gestern noch korrekt und lesbar dargestellt !!

I just updated Firefox and the bookmarks on the left become all black. Black font on black background. Unreadable. Before that, the font was white.

How do I change that ?

Thanks !

Someone had me do an add-on. I have no idea what the add-on did. Nor do I know how to use the add-on or if it installed correctly. No one gave instruction on how to do what I am asking . So I am stuck with the need to make my scroll bar wider. I need detailed instructions for an idiot on the computer.