Firefox Support Forum

Hello! I am trying to create my own theme using Firefox Color, but the custom image I uploaded doesn't show in the actual theme, only the little preview. It is definitely small enough, so I do not know what the problem is. Is this able to be remedied? I am adding a screenshot so you can best understand what I mean. I have not used FireFox Color before, so if it is an obvious fix, I apologize for the trouble. Thank you, have a great day!

I have always been able to use the Mac setting to Double Click Title Bar to Minimize windows and it's always worked fine with Firefox. Until Sonoma, but with a stipulation.

It will not respond at all to a double click, but ONLY when I have chosen to show the title bar in Firefox. It works fine clicking in the tab plane as long as I have Show title bar turned off. This is a bit bizarre, but it appears a recent update of Firefox no longer works like that in Sonoma. Works fine on a Windows 10 machine and on a Mac running an older OS.

Note that I did do all the proper troubleshooting, reset Firefox, start in safe mode and all to no avail. When Show Title Bar is turned on, double click to minimize simply does not work.

I would like to customize my New Tab page to show only the icons (shortcuts) I specify; I think it would help if I could change the size of the icons so fewer show, but I cannot find any setting to change the way the page looks. This is a new problem since I got a new computer with Windows 11. In Windows 10 and earlier Firefox versions, I could have only a handful of shortcuts that I wanted and it did not automatically add recently visited sites (I have not selected that option in the settings). I do not want to dismiss or delete shortcuts individually, but want a permanent solution.

Trying to recover from a hard drive crash. Had to buy a new desktop with Windows 11 Pro (looking to be a bad move). I downloaded/updated to Firefox 126.0 (maybe also looking to be a bad move).

Have my last "working" userChrome file (it took me weeks to perfect this to my needs).

I am looking for: C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile>\

but there is no "AppData" folder. And there is no existing userChrome.css file, anywhere!

Is the functionality I am looking for a thing of the past?

Is Firefox not completely supported by Windows 11?

If so, what is the last version of Firefox that will still support userChrome.css?

When visiting the "support.mozilla.org site, third-party translantion add-ons(such as "Immersive Translate") can't work. It says "can not read or change data on this site". I want to translate it on the same page rather than skipping into a new page. However, it can work on the "www.mozilla.org" site. When visiting on Chrome, there is not a problem. Is that site just privileged on Firefox ?

Hello,

After reading just a few questions and their answers here I realize that I'm never going to learn everything I need to know to feel comfortable or even enjoy using my desktop computer. As for my cell phone, I've never liked using it and unless someone helps me learn how to use all the available features in Firefox (plus everything else in a smart phone which I call that stupid phone) then I will probably end up throwing it in the garbage and will sit in waiting rooms reading a book or magazine instead of doing whatever it is everyone else is doing on their phones. Most likely they're texting which I just learned how to do a few months ago. I never thought texting was necessary for me to know but now it seems to be the only way my adult children keep in touch these days.

How can I possibly learn everything I can or should do with Firefox? I barely know how to use all the basic features even though I've used Firefox for years. Your updates come so frequently that I will never be able to catch up! Why don't you offer some courses strictly for seniors who need a lot or even just a little bit of guidance when it comes to tackling technological issues? I dislike new technology but we have to use it, don't we? So, make life easier for us older folks and offer a few virtual courses to help us learn what we need to know. Come on Mozilla you can do it. You offer the technology now show us how to use it!

Thank you.

When I restarted my PC and opened Firefox only 1 tab Open previous windows and tabs. All the other 6 disappeared. I opened 3 additional tabs, closed Firefox, and reopened Firefox and only the one same tab was there from the previous session. Why does the feature not work properly?

Firefox 126 has changed the tabbar tab background handling and I cannot find a way to get my graphical tab background back for the selected tab. The left image shows FF 125.3; the left 126.0, which installed itself yesterday. In the userchrome for the old Firefox I have:

    #TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab .tab-content
 {
   background-image: url("file:///D:/System Graphics/Toolbar Backgrounds/rgsweeve - 000.bmp") !important;
 }
  #TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab .tab-content[selected="true"]
 {
   background-image: url("file:///D:/System Graphics/Toolbar Backgrounds/rgsweeve - 040.bmp") !important;
 }

This gave me the differentiated selected and unselected tabs but does not work for the selected tab in the new Firefox. Any ideas how I have to specify this now?

[I am making this post using the older version of Firefox. If I get some suggestions I'll reinstall the newer version (actually turn auto update back on) and try them out. Thanks.]

I have enabled my new Theme but it keeps defaulting back to my old Theme. I have tried closing Firefox and opening new tabs. Opening a new tab also changes it back to the default theme. I have sent an image of the old theme. The new theme is Aurora Australis. And the second image shows this Theme enabled. What gives? Carl

I often have many tabs open (25+) I have made it so tab shrink way more then normal (I like the way chrome handles tabs where they basically just shrink infinitely. Firefox doesn't do it's even with my twerks but ohwell.)

so when i want to click on a tab with audio playing at a small size i often mute the tab instead of clicking on the tab

Where and how can i remove the mute button that appears when hovering over tabs with audio playing?

I have never found that mute button useful so removing it will not impact me

Hello dear community,

I have a program that continuously monitors the download folder under Windows 11 for a specific file and retrieves it. I download this file in Firefox, but the said program gives an error.

I have noticed that when files are downloaded in FireFox, they already appear in the Downloads folder with the corresponding file extension with 0 bytes and these are then apparently swapped or merged with the .parts file.

The problem is that the mentioned program now tries to retrieve the unfinished file, which then leads to an error.

Does anyone know if it is possible to customize Firefox so that the file only appears in the download folder when the download is fully complete?

Many thanks for your help :D

Hi All,

Is there a way to make the Nav Bar flush with the left and right margins of the browser?

The way it is now, the margins are a bit too much inward, not reaching the ends of the browser window, which makes the buttons on the ends (Back and Hamburger) too wide, as can be seen by the wide highlight when hovering over them. This makes the end buttons rectangular instead of square.

In FF 88, these buttons were flush with the left and right margins of the window, making all buttons on the Nav Bar square.

I'd like all the Nav Bar buttons to be perfectly square and symmetrical. This apparently requires adjusting the left & right margins of the Nav Bar... or is the Nav Bar just too short causing it to stretch itself to the ends of the window? I'm not sure.

Please see attached 2 images.

Thanks!

After the latest update (Monday) my Lastpass extension icon disappeared from the extension toolbar. It was still listed in the Add-ons and themes page. How do I get it visible again? I've tried to right click the Lasspass icon but "pin it" does not appear. I've deleted the extension, rebooted and reinstalled with no difference.

Hello, all the sudden, news site comments don't show and after research here I learned it might be enhanced protection tracking settings. I tried all the settings and nothing seems to work well (not tech savvy). Strict = user comments blocked and all the other settings allow so many ads they cover content and/or there are a hundred on a page. On a desktop. Any suggestions would be appreciated. Thank you very much.

I have tried multiple Firefox Extensions for saving images instead of using the default Right-click "Image Save as" function, so reduce steps. All of the extensions have the same issue. When the filename already exists, there is no failure but instead a (1) is appended to the end of the file name. No message/prompt either to skip/cancel. It just silently appends. And (2) (3) and so on.

Is this a limitation of the Firefox WebExtensions API? Is it not possible to return a verbose failure for existing filenames?