Firefox Community Forum

I have an Arch Linux installation with Plasma desktop. Software is always kept up-to-date. Sometime recently, Mozilla apps, Firefox nor Thunderbird, will no longer print, neither to pdf nor to network printer. These always worked before. Now, if even "print preview" is invoked, the dialog opens as a blank sub window with only the word "Print" in upper right, and at left center is "Preparing Preview with rotating time delay wheel, which never resolves. All other apps, including other browsers and mail handlers, will print without issue. I've tried the obvious checks with no success. Where could be the problem? Is there a helper app shared by Firefox and Thunderbird that could be the issue? The only potential remedy I have not yet tried is complete removal of both Firefox and Thunderbird, as that would cause re-configuration issues for both. It's necessary to press <ESC> to terminate the print window when it fails to respond. Screenshot attached...

Due to not everything reloading every time, a connectivity problem I can't blame Firefox for, I now have 3 windows, together comprising all the tabs I want [OK some are duplicated, but it's easy to remove those...]. How can I stick those all back into one window? - with my pinned tabs at the head., which is where they were before...

Hello people,

Please some help around the following issue, since a few days, Firefox will not play mp4 files directly in the browser. What it does when clicking to open an mp4 from the file server, it saves the file first and then opens a window to play it. Or it directly provides the save dialog window instead of playing it in the browser window directly.

Any ideas, appreciated. I have a lot of files to assess for my students, and this browser behavior makes it very tedious.

Greetings.

Do I need Firefox 78.0.2 (x64) and Firefox ESR (x64)? Also I noticed I have noticed a very slow startup. I have an old Dell Vostro 460 PC. I also did a Task Manager and noticed five Firefox process. Can I shut some of these down?

Thanks, Irv

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!

Despite Tab Groups not yet being "rolled out" in Australia, I am wondering if "Container Tabs" will still be Supported (in the following ways):

1. Will Container Tabs still be able to be used effectively in concurrence with Tab Groups? 2. Is it planned that Tab Groups is being developed to replace Container Tabs? 3. If one will be able to use Container Tabs concurrently with Tab Groups, can different Container Tabs Types be split over different Tab Groups? 4. Is it planned that Tab Groups will supersede Container Tabs in terms of Protection, Privacy, etc.....? 5. Will Tab Groups be able to be put to sleep/hibernate in order that Firefox "speed/memory" is not effected?

Whilst on the subject of Tab Groups and Container Tabs: 6. Up until a few updates ago, when the mouse was hovered over a Container Tab, a dialogue box would indicate: the Tab Subject, Site Identity and Container Tab Type. Please bring back the Container Tab Type when the mouse hovers over a Container Tab..! 7. When this (Valuable) information was ceased, the only way to get similar information - namely the Container Tab Type - has been to use the: List all tabs icon {tab icon 2} at the Right hand end of the toolbar. It is a blessing that this was not changed, but still a bit of a nuisance to check them both! Why is this an issue you may well ask? - I am sure I am not the only Firefox user (Forever) - with memory decline!

Thanx

When I opened Firefox all my webpages that I visited where there. Now it is just a blank screen and I have to go to webpages manually, there is no way to add them to my start screen. it just stays blank and search bar stays blue.

I’m using Firefox version 134.0.2 in MacOS 15.2 with 1Password version 8.10.56 for Mac. The 1Password extension is enabled and the app is open and unlocked but each time I open a site requiring login and password I get a pop-up telling me to, “Press the 1Password icon in your browser’s toolbar to unlock.” This requires me to unlock 1Password again to enter the site’s login/password combination. Not sure if this is a Firefox or 1Password issue but it’s annoying. Any thoughts on a resolution? Thanks

everything as mentioned in this reddit issue and its supported links https://www.reddit.com/r/firefox/comments/1ab87im/firefox_changing_tabs_itself/

for the copying issue https://www.reddit.com/r/firefox/comments/126rtip/copyingcutting_text_switches_to_another_tab/ "" When I press Ctrl+C, Ctrl+X, or copy/cut by right-clicking, Firefox sometimes switches to another tab. This happens sporadically, and seems to resolve itself without restarting the browser or even closing any tabs.

This happens on multiple sites, from search engines to Google Docs to Reddit: any time I try to copy text I get switched to a random tab. This has happened to me 5 times as of now, some of those occurring after a reboot. "" cant find a solution to it anywhere Operating System: Debian GNU/Linux 12 KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 Kernel Version: 6.1.0-34-amd64 (64-bit) Graphics Platform: Wayland Processors: 12 × 12th Gen Intel® Core™ i7-1255U Memory: 15.3 GiB of RAM Graphics Processor: Mesa Intel® Graphics laptop

Dear Sir or Madam, we have had a major problem with Firefox since today! Our specially programmed software, which displays HTML 4/5 with onClick and forms and submit, has stopped working since today! We can no longer work properly!

Example: We click on a button with onClick, an input form is created, e.g. for a construction site with Jquery query and submit button (OK up to this point) and then another input field opens, e.g. for entering hours, and we enter a number/value. - From this point onwards, you can no longer press Enter on the keyboard and there is no (Submit) button in the form to click on.

So from the second form controlled via IFrames onwards, clicking is no longer possible!!!

It is affecting more and more users who use Firefox! Please check urgently.