Firefox Community Forum

Hello... currently when I try to open a PDF from the internet, I cannot open it in Firefox. Specifically I have been adding PDF files to a FB page, but cannot open the document when browsing in Firefox. I can open it, when using EDGE.

Hi,

I'm having an annoying glitch since the recent Firefox update. Now, when I am looking at a webpage the tabs at the top of the screen disappear and the webpage automatically maximizes and, to see your tabs you have to hover at the top of the screen to see them again. I do NOT want that! I want to see my tabs at all times! How do I change the settings so that I can do that? I sincerely hope that this "improvement" can be deactivated!

I talk to friends on facebook/messenger. Previously my conversations were always on Firefox. But suddenly a couple of months ago I could no longer use my camera and my microphone on Firefox, and had to install a new browser. I have been trying several times to give Firefox permission to use my camera and my microphone, but sofar without success. What do I have to do?

Hi,

I am using mTLS to authenticate my computers reaching websites I manage. I imported client certificate on firefox and cloudflare is checking if the client is sending the right certificate. I am using Debian and Windows. On Debian (13), everything was working great until the version 140 ESR. I don't know why but the client certificate is not sent to cloudflare, sometime it is (when CTRL+F5) but no CSS is rendered. So I can't reach my websites. Firefox is still asking for the right certificate to send but that's all. This is weird because on the same version on Windows, with the same certificate, it is working. I tried newer version (144.0.2) on Debian but it is not working. The version I use at the moment is 128.14.0esr. Cloudflare is blocking the traffic because no certificate is sent. If I disable the rule, it is working.

Could someone help me? Feel free to ask for more details.

Hugo

I installed Firefox yesterday, and everything was fine for a day. Today, when I play a YouTube video, the entire page freezes - I can't pause it, select text, or do anything. The page starts responding after about 10 seconds from last interaction.

Compared to Chrome, I can play 20 YouTube videos at once and everything works fine.

The problem only occurs on YouTube. Sites like CDA and Jellyfin work fine.

Sys: Latest Windows 11 I5-10400F Intel Arc B580 RAM 32GB 2133 MT/s

I am a pensioner in te UK. Due to restricted mobility I spend a lot of time using Firefox to access many web sites. This normally works perfectly. Today I tried to access the web site of national chain store specialising in outdoor clothing and equipment because I need a new showerproof jacket. I have never used that site before, yet Firefox reported Error 403 : Forbidden. Have you people never been told tat error messages are supposed to be useful? What is Forbidden. Why when it has not happemed before?

The web site is https://www.millets.co.uk/

I have a web site so I have other browsers just for checking for layout problems.

I tried Chromium, same error but the message said You are not authorised to access this site. Presumably that is what your incompetent message should have said. But why should a pensioner trying to buy something from a chain store ever need any sort of authorisation?

I tried Opera. Connected me no problem!

I tried Edge. Connected me no problem.

Clearly somebody somewhere is an incompetent idiot, but it isn't me. So who is it? If it is yourselves then please do something to fix this.

I have no idea how my bookmarks disappeared, but I cannot locate any of them. How can I get, at least, my bookmarks from one month ago. Have an upgraded computer, new hard drives, etc. I've searched my computer, cannot find any bookmarks. Is there hope? Win `11

It's apparently well known that Firefox and Gmail don't play nice together, apparently because of how Gmail uses Java. Is there a plan in the works to fix Firefox so Gmail isn't so absurdly slow? I don't *want* to switch to Chrome, but I don't want to stop using Gmail either.

I've been having this issue for several weeks now. I have an HP desktop PC, with Windows 11, and the latest update is:

2025-10 Cumulative Update for Windows 11, version 25H2 for x64-based Systems (KB5070773) (26200.6901) - which happen ed yesterday, and this problem has been going on for a week now.

When I click on Bookmarks -> Manage Bookmarks; all my Bookmark Folders/sub-folders are listed, however when you click on an individual folder/bookmark - the Bookmark Properties are totally blank at the bottom of the screen. The RED ARROWS point to the area where any bookmark listed all have the same missing Properties area.

Notice the icon to the left of any bookmark? It looks like a globe. All individual bookmarks have this same icon, where before they could have and did have different icons to the left.

The BOOKMARK NAME is displayed, but the URL ADDRESS is missing for each and every bookmark listed.

This makes this browser, which I've used and loved for many years, TOTALLY USELESS....!!! I have uninstalled Firefox, reinstalled, and the bookmarks are still missing their properties. I have to delete and import bookmarks to get this to work. BIG PROBLEM: When I leave my PC on overnight with nothing executing, the next day when I launch Firefox, what was there before and functioning, now all bookmarks are missing as described above. Nothing changed overnight and Firefox changed something by itself that I didn't initiated.

Please investigate, correct the code, and send out an update immediately. IF NOT FIXED ASAP, AFTER USING FIREFOX SINCE IT WAS FIRST INTRODUCED - I AM GOING TO DUMP THIS BROWSER FOREVER. ARON COOK

I have a Brother DCP-L2550DW printer that is connected via a network cable. Any other browser, i.e. Edge or Chrome, seem to be able to connect and print just fine. Firefox fails to print and there is no information about why. I have checked Event Viewer, turned off all the extensions, tried the about:config to reset printer options. Every single suggestion I've found so far fails to fix it. I have a great deal invested in using Firefox (bookmarks, etc.) so I'd like to keep it as my default browser, but not being able to print is SO annoying. Any suggestions?

When I click on KPN TV+ I see a message: Firefox is installing missing components, try later. But Firefox is NOT providing missing components.. Or is the problem that KPN (and Ziggo IPTV) can NOT run on Linux???