Komunitné fórum Firefox

bold textBad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit. I cant get into my Social Security account . PLEASE HELP.

Ernest Barrow. [edited email from public community support forum]

The release notes for Firefox version 140.0.1 indicate the extension button can can now be removed from the toolbar.the noes say:

"Firefox Extensions: Customize your toolbar with the option to remove the extensions shortcut, giving you more control over your browser. When the button is hidden, you can access the extensions panel again at any time from the Firefox menu by clicking the Extensions menu item."

I still cannot drag the button down and out of sight by customising the toolbar.

Suggestions welcome.

Today (06/12/2025) upon opening a new tab, Firefox slid the new option of uploading a custom picture to apply to the background. Tried the new feature, now I can not find the setting that allows me to change the picture. I read the thread "Customize your wallpapers". The instructions are as follows; You can personalize your Firefox New Tab page by adding one of the available wallpapers. Follow these steps:

  1. In the right corner of the New Tab page, click the gear IG settings icon.
  2. In the customization panel, under the Wallpapers section, you will see different categories like Solid colors, Abstract and Photographs.

       Click the category you prefer. For example, selecting Abstract will show a variety of abstract designs. 

The problem I have is the customization panel is no where to be seen, I have click on EVERYTHING possible, it is not in my settings, why? How do find this?

I recently updated my MacBook Pro to the latest MacOS (Sequoia). Though I didn't notice it immediately, today when I opened Firefox, all text is displayed in a foreign character set. It is pervasive - I've tried to use several tutorials to reset the language and all settings to default, but so far nothing has worked. I've uninstalled Firefox using AppCleaner (which gets any leftover files in OS folders, as well as the app itself), but a clean install results in the same issue. I've disabled all add-ons and reset all settings to default as near as I can tell. The only time the browser displays properly is when it's in Safe Mode. I'm not sure if this is related to the OS update, but I can't seem to identify any other recent change that could have the potential to cause this problem. Any suggestions would be greatly appreciated.

In other browsers when I add extensions, I can open an extension panel, or got the the browsers installed extensions section, and edit open up my extension setting pages, and edit them. For example uBlock Origin, but there are others. It doesn't seem possible to do such a thing with Firefox. Is that on purpose or is something wrong?

I searched how to disable any random new AI features Firefox was about to cram into the browser.

I was served this support page that says I can "Block new and current AI features (single switch)"

Simply, the described feature to disable AI features isn't in the settings. I've look and tried searching for "Block AI enhancements" & "AI controls" but no luck.

Please tell me they haven't given the writing of support pages to some shitty LLM.

Hello

I was reading this article: https://support.mozilla.org/en-US/kb/ai-chatbot

In the section: "Select text to see suggested prompts" there is a screenshot which shows pre-written prompts and a textbox from the shortcut for AI prompts menu. Is it possible to have custom promts which are added to this menu?

Thanks

Best

Noah

Helllllllllllp! Just had firefox install an update & now all my saved bookmarks, login passwords & previous home page have all gone. Have reset Home page, checked that Profile is correct & the bookmark folder is empty. Where have they all gone. Yes I have restarted my computer but made no difference.

I have really liked using the "refresh" button with my Firefox browser. The "refresh" button has disappeared from one of my two Dell PC's (I use Windows Eleven, and my Dell PC's have solid state drive). I know there are two other "help" buttons ("troubleshoot mode" and "clear startup cache"). The "refresh" button has really helped me to keep my Firefox browser working properly with my two Dell PC's. Thank you for any comments you might have about this.

How to change home page and new tab to desired URL or any extension of Firefox desktop in 2025?

I am unable to find any way to change how my new tab should look when I click + sign or new tab is opened up on browser opening or re-opening unlike Chrome.

I hate the change of position of typing from the search bar on the current new tab to the URL bar (unseen or unheard in Chrome) that Firefox implemented without considering users who would detest it.

Using Firefox 131.0.3 (64-bit)

There are 4 toolbars at the top of the Firefox screen. The default order from top to bottom seems to be:

 Menu bar
 Tabs bar
 Navigation bar
 Bookmarks bar   (which Firefox apparently calls "PersonalToolbar")

I would like to move the Bookmarks bar above the Tabs bar so the order is;

 Menu bar
 Bookmarks bar
 Tabs bar
 Navigation bar

I tried to use ChatGPT to accomplish this. After well over 6 iterations, I gave up (ChatGPT was still going strong - hallucinating?). The only code in userChrome.css that accomplished this is shown below. Unfortunately it leaves the order as:

 Bookmarks
 Navigation
 Menu
 Tabs

Can a human expert help me where ChatGPT failed? ___________________

/* Move the bookmarks toolbar above the tabs */

1. navigator-toolbox {

   display: flex;
   flex-direction: column-reverse;

}

Hello! My computer is Win 7 (my system info; the same with greater detail). I've been relying on Waterfox (mainly to download videos; it's not the browser I use regularly) for years, and it has never given a problem, far as web access. I have not updated the browser, main reason being my downloading add-on (which happens to be the popular "Video DownloadHelper") behaves in a less preferred way in my other browsers. (I fear an update would put the kibosh on the better way that program functions in Waterfox.)

Suddenly Waterfox has become moody (I don't know if BB code is going to work here, but the following image is a scrrenshot of "Hmm. We're having trouble finding that site." If not showing below, the direct link.):

[URL=https://imgbox.com/hXEimf6M][IMG]https://thumbs2.imgbox.com/62/ca/hXEimf6M_t.jpg/IMG/URL

I am hoping the ones reading may have suggestions for me to get my Waterfox back.

I did install a VPN recently, but I don't think that's an issue. Another point of consideration: Waterfox can access the internet in Safe Mode.

I consulted this handy-dandy page before bothering you:

7 Fixes to Try When Waterfox Is Not Loading Webpages on Windows

1) Weak internet connection. (Nope.) 2) Corruption in Waterfox installation files. (This possibility seems remote. After all, it was working well until now. ) 3) Malicious extensions (I have tried disabling all extensions, and there aren't that many.) 4) Webpages will also fail to load if there's something wrong with the browser's code. (This "code," whatever that is. was working fine for all this time. A quick look-see led to this meaning of "code": "..Code is made from C++ and C. Also javascript, pyhton, ruby, and many other languages." That seems to be a long shot.)

Their recommendations (leaving out the ones that are not relevant):

2) Update Waterfox. (I'm trying to avoid that. Of course, this might be the solution; however, It's not as though my version is that old and would have stopped working. Of course... who knows.)

4) Check Your DNS (Sounds like a lot of trouble; I don't think this will make a difference, as other browsers present no problem, and WF works in Safe Mode.)

5) Clear Waterfox Cache and Cookies (I did that.)

6)  Remove Unwanted Extensions  (I did that, by disabling the toggles, as suggested.)

7) Reset Waterfox.

That might be the last resort, and I have the feeling a reset is not going to do the trick. Doing this will get rid of the video downloading extension I'm trying to preserve, and instead I'm hoping one or more experts might come up with another suggestion that will work.

As an additional point, under Waterfox's "Options" > "Network Settings" > "Settings," where the default choice under "Configure Proxy Access to the Internet" is "Use system proxy settings," I fooled around by checking the first two, "No proxy" and "Auto-detect proxy settings for this network," and neither selection did anything. I could not try the remaining choice, "Manual proxy configuration," because I have no idea what figures or numbers to place for that one. If the BB code for the screenshot below does not show, here is the direct image; I'm also using the "attachment" option below.

[URL=https://imgbox.com/AqBgHdib][IMG]https://thumbs2.imgbox.com/2c/b2/AqBgHdib_t.jpg/IMG/URL

It's really odd Waterfox suddenly stopped working; it was so reliable.

Thank you. I would be very grateful for your help.

.

Hello

Recently I've upgraded from Kubuntu 24.04 to 24.10. I'm almost sure that the minimize/restore buttons were available in my Firefox after the system upgrade. For the last few days I can see they are missing - please see attached images.

I can partly fix the problem by going to Settings->More tools -> Customize toolbar and selecting "Title Bar" checkbox. In that case I have the title bar displayed with all 3 button (minimize, restore, close).

But I would like to have the default behavior: title bar is turned off and the mentioned 3 buttons be visible in the tab bar.

How to have those buttons in the tab bar when the title bar is turned off?

Hello, how can I remove or hide "List all tabs" btn?

Set "browser.tabs.tabmanager.enabled" as "false" stopped working for me after update to version 131.0. Hiding the btn before version 131.0 was not a problem.

I saw in release notes that "List all tabs" got some changes. link

Hi everyone,

I'm on 140.0.2 / Win10

My current about:config:

browser.urlbar.trimHttps false browser.urlbar.trimURLs true browser.urlbar.untrimOnUserInteraction.featureGate false

I noticed the new https trimming, but when I double-click (e.g. to select a word in the URL) to copy or change a part, the https pops back, shifting where my cursor is relative to where it was, which is annoying for having to reposition the cursor.

Disabling `browser.urlbar.trimURLs` should make sense to revert to no-trimming, but it didn't work.

`browser.urlbar.untrimOnUserInteraction.featureGate` being false already shouldn't have caused the issue I described.

Many thanks in advance!

I've never had sponsored shortcuts and suddenly today I've got them. I've attempted the disable the "sponsored shortcuts" on my desktop however its greyed out.

Starting state - Shortcuts selected, sponsored selected and grey Procedure: 1.) Deselect shortcuts, select shortcuts, sponsored becomes cyan 2.) Click sponsored, it becomes grey again 3.) Deselect shortcuts, select shortcuts, sponsored becomes cyan (again) 4.) Click sponsored, it appears deselected 5.) Hit refresh and it returns to starting state

I do not edit my GPO or registry, settings are not controlled by an organization, I am not confusing sponsored shortcuts with pinned search engines.

A few days ago I changed to a new computer.

On my old Windows 11 computer in Firefox I could sign in with my [edited] @gmail account to my Blogger blog, see the New Posts page, edit my posts, post new posts and see the sign out option.

But on my new Windows 11 computer in Firefox I can sign in with my [edited] @gmail account to my Blogger blog, see the New Posts page, but I can't edit my posts. I am signed in but Firefox doesn't show the sign out option.

Whereas on my new computer in Chrome I can sign in with my [edited] @gmail account to my Blogger blog, see the New Posts page, edit my posts, post new posts, and see the sign out option. As always.

In Firefox it says there is something wrong with my [edited] @gmail account and to refresh it or change to another account. I don't now how to refresh it and changing to another Gmail won't work. But it lets me in to my blog's New Posts page!

How can I in Firefox on my new computer edit my posts and see the sign out option, as before and as always in Chrome?

Hi. There is a new feature of Firefox that bothers me. It is when I drag tabs around the top, they try to group when I don't want them to. So I go to about:config and find the "browser.tabs.groups.enabled" key and set it to false. But when I restart Firefox, the change reverts. How do I fix this so the change stays?

I've already tried going to Menu->Help->More troubleshooting information->Profile Folder->Open folder, but there is no "user.js" file there. Do I have to do a Firefox reset to fix this? I hope not...

Note that I'm pretty sure that other settings that I change do not revert when I restart Firefox. Right now, it seems to be just this one about:config setting, unless the new version of Firefox reverts all manually changed about:config settings upon restart.

Thanx in advance for any help.