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When I open any stream, it takes about 2.5 seconds from the start of the page loading to the appearance of the stream image and playback. For comparison, in version 137 it took about 1.0 seconds.

I tried to launch the browser (Firefox 138.0.1) in troubleshooting mode, and also created a new profile, but the problem remained.

I also downloaded portable versions: 137.0.1 - everything is fine. 138.0 and 140.0a1 - slow loading.

I also have Zen Browser installed (the latest version is based on 138.0.1) - everything is fine.

- Translated via Google Translate.

My YouTube homepage is blank when I visit using Firefox (see attached screenshot). Here is a list of all of the fixes I have tried:

-Disabling all extensions and turning off Enhanced Tracking Protection (at the same time) -Clearing cache -Clicking 'forget this site' on YouTube in my browser history -Restarting my PC/Firefox -Refreshing Firefox profile (this worked, but the issue returned after an hour) -Changing my system theme to light mode -Launching Firefox in troubleshoot mode -Logging in on an incognito window (with the same result) -Probably some other things I'm missing (I tried pretty much every result I could find from looking up 'YouTube homepage is blank' and 'YouTube homepage not loading).

The issue only occurs on Firefox and only after I log in to YouTube. This has never occurred before. I checked to make sure my Firefox and YouTube settings are the same as they've always been.

YouTube videos load fine as long as I paste the direct link into the URL bar, but ONLY the video (no comments, recommended videos, likes/dislikes, description, etc...) and I can't take it out of theatre mode nor fullscreen it (fullscreening it just removes the top bar of the browser--the video itself still has black bars on the sides).

Sometimes when I reload the page, I see the following at the end of the URL: &ThemeRefresh=1. I don't know if that means anything.

I am using the Firefox app on Windows 11. I am not using a VPN. This issue is specific to YouTube and YouTube only.

Any help would be greatly appreciated. Thanks!

I'm running v138.0.1, but the ability to group tabs that was supposedly introduced in v137 is completely absent from my browser. I can neither drag tabs onto another to create a group, nor create groups by right clicking on a tab. What's up with that?

I updated Firefox to version 138 yesterday(29rd April). I use latest stable version of Linux Ubuntu. Sites itself will work, but top of browser wont. Can click open new tab from +-button, but can't close it.

Browser stops reacting to mouse clicks when browsing (after hours of browsing) and I have to use right-click to navigate on sites.... until I restart browser. I tried to close tab and refresh tab when these problems occurred. Also, this occurs on all sites.

I think this is clearly browser problem(because clicked areas are on browser, not inside tabs), not problem in sites itself, because problem manifested itself after hours of browsing, not immediately.

Edit: I'm not well-versed enough to write Bugzilla-report. Also in 138.0.1-1 version, where I updated 3rd May 2025.

Edit 2: I've added picture of area that stops working. Edit 3: On another picture, can't close "Archaeology" tab, no matter what. Edit 4: Clarified things up.

Anything using WebGL in-browser tells me that my browser doesn't support it.

https://get.webgl.org/ says "Hmm. While your browser seems to support WebGL, it is disabled or unavailable. If possible, please ensure that you are running the latest drivers for your video card." but I updated it to the most recent drivers and the issue is still happening. Graphics card is an AMD Radeon RX 6600 XT.

Previously I could change the color of ONLY visited links. 138 broke that ability and replaced it with a contrast setting that changes every kind of link color and the page background color/design too. This totally stinks and makes the visited web pages look terrible and hard to read too.

Is there a way to set FF so that ONLY visited link colors can be changed to the preferred one?

I followed these directions - https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer but Firebox only exports this data in the bookmarks.html file and attached image! Bookmarks Menu

Mozilla Firefox

Get Help Customize Firefox Get Involved About Us

How can export all of my bookmarks in Firefox?

Firefox mobile version 138 on Samsung Galaxy A14 5G

For years I've had my bookmarks arranged in a specific order. The day after the most recent Firefox update I discovered that my bookmarks have somehow been rearranged in alphabetical order.

What caused this to happen and how do I prevent it from happening again?

I can not get Youtube to load on desktop Firefox. It works fine on the mobile website, app, and Chrome. I've tried clearing cookies and site data, removing extensions, resetting Firefox, and disabling hardware acceleration, and so far nothing has worked. Has this been happening to anyone else ?

https://drive.google.com/file/d/1c66u.../view?usp=drive_link

My option to "Open a specific page or set of pages" has vanished!!!

Originally a page I play backgammon at wasn't displaying properly, my graphics drivers are up to date so I shut down the browser, when that didn't work I was going to uninstall but at the beginning of that process I was given the option to refresh so I chose that instead.

Unfortunately it took me a hot minute or two to realise my browser was no longer opening a specific page it always had done.

Where has that option gone?

I am starting to use the new utility which allows me to group tabs. But I would like to see only the name of the group and not the whole list. How can I collapse the list of tabs which belong to a group leaving only the group name shown. Then with a click I should be able to see the corresponding list of tabs if I need it. Saving and closing a group is not a solution, as the group disappears from the Sidebar. Thank you for your help. Best regards Ray Ballisti [edited] @bluewin.ch Switzerland

When playing back audio via Bluetooth it cuts out and pops every few seconds. This is not a Bluetooth or network issue I have tested that. Firefox app version 138.0.4 Android version 15 on pixel 8

The new video player is buggy, previously the ios own video player worked perfectly, why change it?

Now I can't even put the video in horizontal and also it has a very bad interface

Previously Firefox just used ios-own video player.

Will you come back to the ios video player? tomorrow I found out you changed it and I'm sad.

When will you return to the previous one?

a few months ago, i built a new computer and upgraded to windows 11. but i have been having a bug where after resuming use of a firefox window, i will at some point lose the ability to left clicks links or to type in any fields on the page. for my mouse, i can still properly left click web buttons, like the youtube players, and i can left click tabs to switch between them. right and middle click still work correctly as well. for the keyboard, i can use keybinds on my keyboard (ctrl-tab/ctrl-shift-tab/ctrl-a) or hit space bar/page up/page down to navigate, but typing in fields just doesnt work. this bug happens after some random point of using the program, so it could happen after 10 seconds or 10 minutes.

the only way to fix it is to switch to a different program momentarily, whether that be alt tabbing to a non firefox window or clicking the desktop. ive just tried switching all my extensions and everything off with troubleshoot mode, but still experienced the bug. ive also tried different keyboards and mice in different ports and had the same issue persist, so i dont think its my peripheral software since i used generic keyboards too.

does anyone have any suggestions on what could be happening here and if anyone is experiencing the same issue? its very frustrating

I seem to have accidentally set up tab-groups, on desktop. Probably I fat-fingered a shortcut to group some tabs. This is a function I'll never intentionally use — since I'd rather not cut off my fat fingers, is there a way to permanently shut off tab-groups?

Thank you kindly.