Diễn đàn hỗ trợ Firefox

For some months now when I click on a video that is on a news website, such as The Guardian or The BBC for example, the video screen goes black and nothing happens. Any suggestions?

Firefox 137.0.2 (64-bit)

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).

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.

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

When I open a website in Firefox, the page opens OK but there Wikipedia website also opens in the background. The icon appears on the top row to the left of the name of the website I opened. When I close Firefox, the Wikipedia site opens and I have to close that too. Every time. What is going on? How can I get rid of it? Thanks. Windows 11.

Die Handybilder(Android) werden beim Abspeichern auf PC oder Stick in Format PDF umgewandelt, sind verdreht und können am Panasonic Fernseher nicht angeschaut werden. (Format unbekannt) Wie kann ich das Umwandeln verhindern? Vielen Dank! Franz Schraut

So, I had an issue updating Firefox where it went into a loop... twice, and ended up re-downloading the Installer both times to force the update onto Firefox. Eventually, when it happened again a while after I restarted my computer, I managed to get it updated normally (after a tiny bit of prodding), without the need to re-download the Installer. But now, I have two additional copies of the Installer on my computer. What should I do? Should I delete the two extra Installer files, or should I not?

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?

I've freshly reinstalled Windows 11 and after trying to access and watch a movie on any of these sites I get an error (see the pictures).

Browser version: 137.0.1 (64 bit) Widevine version: 4.10.2891.0

Already tried to disable/enable DRM. Already reinstalled firefox. Already manually installed widevine. No clue what could be causing this issue.

I have two Firefox tabs open on my browser. Task manager shows 35 tabs using 897 MB of memory. How do I make this stop? And why are so many tabs running? I have cleared cache, cookies, etc.

I use Firefox on a ASUS Vivobook running Windows 11. On April 1, it tried to update to version 137.0, but failed and led me into a update loop of sorts. I had to re-install Firefox just to force an update on it, and that worked for a bit. Just today, it decided to update... and led me into ANOTHER update loop, and it's saying that the "install failed" when I check the update history.

Is anybody else experiencing this bug, and is there a way to fix it?

dunno if this is the right board, but here goes...

I discovered a bug with Firefox and the pen/touchscreen on my lenovo X1 tablet.

Using the touchscreen, move the map, map works as it should. Can pinch to zoom, ect.

Switch to the pen, map works with pen.

Touch the screen again and Google maps doesn't respond to touchscreen anymore, only the pen, and refresh does not fix it. I have to close and re-open maps in a new tab.

In chrome, this does not happen. Only in Firefox.

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

Firefox 137.0.1, how can I make the scroll bar wider? I tried modifying 'widget.non-native-theme.scrollbar.size.override' in about.config but setting it to 40 made no difference.

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?

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