Firefox Community Forum

Hi!

I am getting messages that I am blocking ads for many of my internet requests. I had never received these before but all of a sudden I started to get them. I have tried a number of things but nothing works.

I am running Windows 11 and do not have any Ad blockers.

I cannot get supporrt.mozilla.org pages into dark mode. My eyes are not good and I can barely read these pages. I have Dark Reader enabled, but I cannot find any way to enforce dark mode. Is it possiblle and, if so, how do I do it, please?

Regards,

Bob

I have an Office 365 account through work and I'm using Copilot frequently. In Firefox I have a pinned tab for Copilot.

In recent weeks I've run into issues where the Copilot page stays essentially blank, i.e. the message field to enter text does no longer appear. The Office Toolbar still appears and when I switch to other Office365 sites like OneDrive and Home they work just fine. The problem only exists with the Copilot page. Refreshing the page does not solve the problem.

I found a temporary work-around by clocking on the lock-button in the address bar and selecting "Clear cookies and site data...". After doing this and refreshing the page it works fine again, but only for a while (like maybe the rest of the day). I don't know exactly what makes it break, but it seems like I have to apply the work-around on a daily basis almost.

Additional Info: I've been using this setup for at least a year and the problem only appeared in the last few weeks. If I open Copilot in either Chrome or Edge I don't have this problem (but I also don't want to use Chrome or Edge).

So when i first updated to 137.0 tab groups were working fine, then one day i couldn't create any more. I had a previous tab group, but when i deleted it, there was no way to make another. I tried dragging tabs on top of each other, tried right clicking a tab to "Add Tab to New Group" but there wasn't an option. I updated to 137.0.1 to see if that would fix it, and it didn't. I then tried to uninstall and reinstall still no. I turned my computer off and then on again and also no.

I'd really appreciate any help with this because i'm kinda tearing my hair out trying to find out what changed.

I use the URL BVN.NL to display videos, however it comes up with a message; "General Source Error" or "Video decoder or demuxer had an error with content" But if I use the Chrome browser, there are no problems.

Peter van Tol pvt1427@gmail.com

Hi,

I have vertical tabs enabled in Firefox. What's the way to eliminate this blank toolbar space (see image) Dragging it in the customization settings doesn't work, as it keeps coming back. It's not Flexible Space.

my firefox is taking forever to load any type of page, and in addiition the thunderbird is also slow. I re-downloaded mozilla, but it is still downloading so skow. just last two days, and when I say slow like 2 minutes to open a page. HELP

Have downloaded the Foxfire browser onto a new desktop and I've signed into my account. I need to see the bookmarks on the homepage as I did on the first desktop. I can see them all, and well organized, in the "backstage", when I click on manage bookmarks. Can you help me get them on the home page?

My computer downloads your updates over and over again, tying up my computer--none of the downloads ever loads This problem is can only be fixed by pull the plug restarts as these downloads will not stop until I do this

As the first screen capture shows (sorry it's in spanish), my PDF documents tend to not print on the full page, but rather only on the top left corner of it, i've already fiddled with the scaling and fit to page, i have cleared the printer settings from mozilla, still the same, ive gone into the about:config menu and changed paper_height, paper_width, shrink_to_fit, and scaling nothing works. The document prints fine on Edge (screenshot 2), no problems with fit, and what's even crazier is that some PDF files work just fine (Screenshot 3). Honestly i have no clue what else to do.

I have a laptop ( screen 1) connected to an external monitor screen 2) and extending the desktop. Firefox is running on the external monitor and a site I use has frequent pop up windows with tick boxes to select. With Chrome & Edge I can get the Popup window to open on the external monitor where the browser is running, but with Firefox the pop up window always opens on the Laptop screen. Is there a setting to get the pop up window to open on the same screen that Firefox is open on?

When I click on any of my Instagram photo posts, I only get the background transparent gray screen but no post photo enlargement with comment and 'insights" link section. It does work correctly on other users' accounts. So am I asking the right entity here or is it a Microsoft problem? Thank you.

in the last couple weeks, every time I go into Firefox my bookmarks and bookmark toolbar are scrambled. (all messed up and out of order). I have to keep restoring from a good save file. How do I stop this from happening? I have even uninstalled and reinstalled Firefox, but that hasn't helped. I have imported the good bookmark file that I saved.

After today's 2025-04 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5055523) update, Firefox does not allow me to log into my Dominion Energy Credit Union account (see attached login error screen). Using Firefox Private Browsing, however, DOES allow logging in. I have cleared the cache, restarted the browser, and restarted the computer several times. Please advise.