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I'm running Thunderbird 128.2.0esr (64-bit) on a Windows 11 PC. I can't find any way to associate a *.log file with notepad, even though this is the my windows default.

• Other file types work fine
• But Notepad isn't in the list when I double-click the file and I have to browse for it every time.
• When setting the default for another file type, it said this could be changed in "Options". I have Settings, but not Options. Under Menu > Settings > General, it has "Files & Attachments". Under this there are 2 columns: Content Type and Action. The only thing listed is Portable Document Content (PDF) and no way to add anything.* Bulleted list item

Just as the title goes. I've been using Mozilla Firefox on desktop since 2005. The best hands down browser ever. I started using Firefox on android back in 2019.

I still love the android version, but my only problem with it is tabs. They stay open constantly. In the desktop application you close out and all the tabs close. In the android version I swipe up and there still there next time I load in. I don't like this at all. Unless I quit out of Firefox from the submenu, the tabs will stay open indefinitely.

I was hoping Mozilla could add an option to auto close tabs in 6 hours or something like that. Or close out tabs when I swipe up in android.

I have moved about 20 friends and family to Firefox and it's always going to be Firefox from now on. You guys rock!

Hello

I use Firefox 132.0.1 under Fedora 14 Linux. Whenever I click an urls in another application (e.g. Libreoffice, Keepass...) a new tab is opened in Firefox (according to Firefox's settings), but Firefox itself does not pop up in the foreground, it remains in the background. I highly appreciate the setting 'open links in tabs instead of new windows'. But FF only comes to foreground in case I deactivate 'open links in tabs instead of new windows'. How can I prevent FF to stay in the background in case 'open links in tabs instead of new windows' is enabled?

Thank you in advance

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.

I recently upgraded to Thunderbird 128.2.3esr, and I no longer have the zebra stripes that alternate between my messages.

The userChrome.css file that appears in my profile's chrome folder is:

/* Light green, high-contrast zebra stripes in message list */

1. threadTree treechildren::-moz-tree-row(odd) {

-moz-appearance: none !important; background-image: none !important; /* background-color:#99E02E !important;} */

  background-color:#EEFFBB !important;} 

/* background-color:#AED6F1 !important;} */

1. threadTree treechildren::-moz-tree-row(selected) {

background-color:#45A1FF !important;}

Is there a reason that this no longer works? Can it be modified to restore the zebra stripes? Or is there an alternative code that will restore functionality?

Thanks in advance!

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]

How to disable home button icon on URL bar in Firefox Android like Chrome allows in 2025?

It takes up too much space and URL is hidden and unreasonable. In Chrome, all is optional and customisable.

Is Firefox team updating it to current standards of 2024-25?

Please fix this! I specifically set it in the settings (on Android) so that no websites open in apps. And yet it keeps asking me whether to open them! There’s no option to "don’t ask again".

Here’s an example: I have two accounts on AliExpress — one is logged into the app, the other in the web browser! And I absolutely don’t want it to open in the app, because what for???

Please fix it so that when I have it set in the settings not to open in the app, it really doesn’t open — and doesn’t keep asking like an idiot!?

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.

When I receive some special html formatted email e.g. from ticket system like Zendesk they look like this: https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2025-06-17-01-06-32-c4ca42.png

When I want to reply to the text stays at the blue colored background and the text would be hard to read and it looks ugly: https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2025-06-17-01-06-37-c81e72.png

Unfortunately I can't change background color to blank or white in Tunderbird 139.0.2. In menu of reply window "Page colors and Background", "Use custom colors", "Background" I can set to #ffffff of course, click apply and ok, but that doesn't change it: https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2025-06-17-01-06-42-eccbc8.png

I suppose it relies to the html formatting of the received email because on starting to write a complete new email it works. But that's very annoying that Thunderbird doesn't manage to change background colors on already formatted html body. Is this a bug or only poor source code and the programmer didn't have much motivation to write and robust code which could gather all html emails?

Could you check with this test email to test and reproduce? https://limewire.com/d/pqbEk#1idjNje6b2

Thanks a lot! I'd be very happy about your help.

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

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

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)

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.

Why the focus on the search bar on the homepage and new tab automatically shifts to URL bar? I hate this. I cannot find any option to change this. Vivaldi gives us an option to decide what we want unlike Firefox.

Chrome focuses on the search bar on the new tab regardless, duckduckgo browser does same, edge does same, opera does same, Brave does same and Vivaldi does same but gives us option in the settings as in the image below. But Firefox automatically forces it. Why? Looks so cheap.

How to change this? I dont want this. I cannot see what I am typing when it shifts to smaller bar on the URL bar from the search bar.

And most importantly, I cannot change the new tab or homepage with any other search engine, like Duckduckgo or Ecosia or Brave Search, if I had any search engine addon from addon store. Chrome has no such BS show. If I am using Google, then new tab and homepage is of Google. But if I use any search, I have to suffer with underdeveloped same old FF new tab and homepage. Is this intentional or forced?

Edge is opening randomly, might be going back until this is user controlled.

https://connect.mozilla.org/t5/discussions/why-the-focus-on-the-search-bar-on-the-homepage-and-new-tab/m-p/81117#M31052

I am using following userChrome.css modification for zebra stripes:

/* Message List colors */ /* Odd rows color */

1. threadTree tr .card-container {

 background-color: #27272a !important;

} /* Even rows color */

1. threadTree tr:nth-child(2n) .card-container {

 background-color: #2d3237 !important;

}

It partly works, but I miss default system color in background, there is only border line. Please see attached images.

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.

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?

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!