Firefox supportforum

I want to uninstall and maybe re-install some add-ons. But when I goto the add-on page. It just appears blank. So are some other pages in the support/ help sections. Another most notably, is (via menu) help -> more troubleshooting information. It just sends me to a blank page! See the uploaded images for the pages I get send to.

Help please with changing my add-ons

I use the numerical keypad frequently and need to use "/" often, but that key shares the shortcut for "quick find" which I then have to exit and click back into whatever text box I was typing in before I can continue. The alternative is to continually move my hand back and forth to the other "/" shared with "?". Both are annoying and unnecessarily take extra time.

I would very much like to disable the keyboard shortcut attached to the "/" key on the numerical keypad.

Thank you!

How to stop Firefox from going to an already open tab when trying to open the same site again ?

yes i want 10 tabs open on the same site, stop switching to one open tab. i discovered i hold shift/alt ti prevent this, there must be an option to disable it altogether, how?

I've just switched to firefox from brave, and theres no button on twitch to enable picture in picture. Using the keyboard shortcut (cmd+option+shift+]) works, but I'd much rather click something on the screen. On brave there used to be a picture in picture button alongside settings, theatre mode, and fullscreen buttons, but on firefox this has been replaced by a clip button. There's no option for it if I right click (this works on youtube), and no option in the address bar for either twitch or youtube. I've tried disabling all my extensions and lowering protections but nothing seems to work.

My V123 for W11 doesn't show the vertical scroll bar unless the cursor is there. There's no "always show scroll bar" option in under general/browsing.

Is this a glitch? Can it be fixed?

Embedded videos missing in Firefox but show up in Microsoft Edge. How to fix it?

Example: https://scheerpost.com/2024/03/09/you-are-betraying-your-ancestors-a-message-to-joe-biden-from-the-graveyard-where-his-ancestors-are-buried/

I run Firefox on a Dell laptop running Windows 10 Pro. I had to rebuild my system because of problems I couldn't solve. I've reinstalled Firefox and copied a profile I had saved in the cloud. When I click the extensions button ("puzzle piece") I do not see the extension list, only the add-ons page. do I have to uninstall and reinstall each extension to get it into the panel so I can pin some of them to the toolbar?

In about:config I set browser.urlbar.clickSelectsAll to true and browser.urlbar.doubleClickSelectsAll to true

Now, single clicks in the address bar select the entire URL except when the address bar contains an address provided by New Tab Override. Does anyone have a fix for this issue?

Thanks.

I want to disable notifications when a download is finished, however the key in about:config 'browser.download.manager.showAlertOnComplete' does not exist any more. Is there some other way to disable these notifications?

I have a current version of Firefox (v123.0 running on Windows 10) but I can't do what I used to be able to do? (And it is making me nuts!)

I used to be able to resize the contents of a site - such as youtube or wordpress or tumblr - there would be a little % on the far right of the URL bar, and I could adjust that until the site was readable and all the pieces I wanted fit in. I can't find a control that will change this for me in the new version. Is it somewhere else? Did that control not port into the new version? Is is gone for good? (I really hope not!) I realize this is such a small problem, but it affects how I interact with basically every site online.

What makes this extra frustrating is that I'm not even certain I am using the correct terms for the thing I want -

Thank you for your patience -

Lee Thomson dancingcrowdesigns@gmail.com

Hello there!

I have been trying to edit an existing browser extension (for the sole reason of adding new features to it for myself), and I've been trying to add it to my Firefox browser. However, upon trying to install it to the browser, it throws an error saying: "Installation aborted because the add-on appears to be corrupt". I've been trying to read more into this issue all across the internet, but none of the recommendations seem to be working.

I tested my extension locally and with using the about:debugging temporary add-on method, and everything seemed fine.

I tried to re-configurate the 'xpinstall.signatures.required' variable by setting it to false (even thought this method is considered unsafe in most cases), and the issue still occurs

I also tried adding a new gecko ID to it as stated in this article, but to no avail: https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/browser_specific_settings

And last, but certainly not least, I tried compressing the extension with web-ext aswell.

My question is - is there a way to add this extension permanently to my browser without submitting it to Mozilla? I did not create this extension, I only added custom integrations to it for myself.

And more importantly - is there a way to add it to the basic Firefox browser, which is not Firefox developer of Firefox nightly? Or maybe create a desktop shortcut that will always start the browser in debug mode, always containing the extension as "temporary"?

I can see that many posts and questions have already been posted regarding this "custom add-on" topic, but my situation is a bit different since my goal is to only use this add-on by myself (and I'm also revisiting this topic since none of the previous suggestions worked in my case)

Any comments, helps, or even links would be greatly appreciated! Have a great day!

How can I restore a previous theme? I had a "colorfore" theme that Mozilla offered a few years ago set up in Firefox. It was perfect! I could see everything clearly with my aging eyesight.Then one of my synced computers needed a new Linux OS installation so I signed out of sync on that machine. Installed the new OS. When I started Firefox the first time I signed into sync. I got my history, bookmarks and bookmark bar, but no custom colors. Now my computer at work has its colors reset to the out of box colors too. I have lost the colorfore colors I have been using for several years now. How can I get the colorfore colors back? Thank you for your attention in this matter. I love Firefox, use it exclusively and contribute to Mozilla. Gregg Scholfield

When typing if I make a mistake I'll usually just delete the entire word and retype it rather than fix the spelling but to do that I need to use CTRL. Now when I press CTRL it zooms in the page even though there are no other buttons being pressed.

As I understand, `autoconfig.js` (with `firefox.cfg`) can be used to have JavaScript run during startup to control Firefox's UI elements.

I have set up `autoconfig.js` in my `/usr/lib/firefox-developer-edition/defaults/pref` folder (I'm on EndeavourOS Linux). As instructed here, I've already put the two required files, `autoconfig.js` and `firefox.cfg` in their correct folders (`/usr/lib/firefox-developer-edition/defaults/pref` and `/usr/lib/firefox-developer-edition` in my machine).

The file `firefox.cfg` contains the following code:

 //
 (() => {
   var tabbar = document.getElementById("TabsToolbar");
 })();

However, every time I run Firefox, this message will appear:

 "Failed to read the configuration file. Please contact your system administrator."

If I empty out the `firefox.cfg` file, Firefox will run normally without showing the error message. It will also run normally if I just have something like this in the file:

 //
 (() => {
   var testVar = "";
 })();

I don't understand why the JavaScript code can't access the Firefox UI elements through `document` or `window.document`. If `autoconfig.js` isn't build for that, what should I use to change my browser's UI elements through JavaScript?

Thank you.

Starting with Firefox version 120, you can set Firefox to automatically launch whenever you start or restart your Windows computer. https://support.mozilla.org/en-US/kb/open-firefox-automatically-when-you-start-computer

The browser shows opt-in prompt for the user to easily setup this behavior. However, I do not want to do this.

When I click "No thanks", the prompt goes away, but couple days later, it returns. I guess that an update resets the prompt status.

Is there a way to permanently disable this opt-in prompt without allowing Firefox to start automatically with the computer?

I want to disable the "language-aware word selection when double-clicking on text" feature that shipped in 122.0 (https://www.mozilla.org/en-US/firefox/122.0/releasenotes/)

This new feature is cool, but it has actually slowed down the speed at which I select text. Originally, I could double-click to select an entire sentence, but now a double-click only selects a single word.

It would be great if there was a way to disable this feature for a specific language.

Thank you.

There used to be an extension called "IE Tab". It allowed you to right click on the link, and open the site in a tab, using Internet Explorer, for sites that didn't work properly in Firefox. I was wondering if anybody knows of any similar extension that would do the same for Edge? I can't open Twitter (X) using Firefox anymore, but I can open it using Edge. I don't like Edge (obviously), but I have no choice. Thanks in advance!!!