Firefox Community Forum

About three weeks ago Google Calendar became completely illegible in Firefox. Everything appears in a miniature font. All my other Google applications--mail, docs, voice, translate--operate as they should.

While opening any Google Drive folder, or by opening docs/sheets start page, none of the contents show up. In the bottom left corner there is an error: "The server has encountered an error. Please try again later." . No amount of "trying again later" works , but through trial and error (disabling modified settings in another profile) i found the culprit of this error message: in about:config setting called network.http.referer.spoofSource was set to true, setting it to false makes the issue i described above disappear.

While my issue is solved, I still don't understand why on every Firefox profile i create this setting is set to true, and whether changing it is a security concern

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.

Hello, everytime I try and upload a video on YouTube with firefox, the video gets stuck at 0% processing,

This never happened in my 4 years of youtube and recently (a few weeks ago) this starting happening. I use firefox to stricly upload videos, and use chrome to browse with my other account casually.

Now Im forced to upload using chrome but I want to still use Firefox to upload videos. anybody know why this is happening? I've cleared cache serveral times and it still won't work. I have no adblockers etc.

90% of time I cannot connect to a website unless I go into settings, privacy security and clear the data. Sometimes this doesn't work and I have to go to a different browser. I don't have this issue with other browsers. Why is this happening?

I'm not sure I have the right topic as I didn't see what I will try to say. The problem is when I send an email (googlemail), I cannot insert a photo/picture in the email. The only thing I can do is attach which I do but want it inserted too. This only started happening about 2 weeks ago. It is now to the point where I have to use another browser to get it to work as it should. Any ideas why?

Hi Firefox Community,

I’ve recently started using Xbox Cloud Gaming (xCloud) through the browser on my PC, and I’m currently using Firefox as my main browser. However, I’ve been encountering some issues while playing:

Noticeable input lag during gameplay

Occasional frame drops and stuttering

Delayed response times compared to when using other browsers like Edge or Chrome

I really prefer using Firefox for privacy and customization, so I’d like to stick with it if possible. The performance issues seem to be more pronounced in fast-paced games, making them difficult to enjoy.

Here’s what I’ve tried so far:

Ensured Firefox is up to date

Disabled unnecessary add-ons and extensions

Cleared cache and cookies

Tested with hardware acceleration on and off

Internet connection is stable (wired, 200 Mbps)

Despite these steps, the performance still doesn’t match what I get in other browsers.

Is anyone else experiencing similar issues with Xbox Cloud Gaming on Firefox? Are there any recommended browser settings, configurations, or tweaks that can optimize Firefox for cloud gaming performance?

Any advice, tips, or solutions would be greatly appreciated. I’d really like to continue using Firefox without compromising my gaming experience.

Thanks in advance!

Something changed with one of the Fire Fox updates. I can no longer log into my Spotify account on my home computer. For some reason the login page shows me a log in error. Nothing has changed on my Spotify account settings. The current log in works in Google Chrome and in the the Soptify app. I can use the same log in on my work computer using Fire Fox as well. I don't know what changed with Fire Fox on my home computer and I don't know where to look to resolve the problem. Can you help?

thank you, Scott,

How can I change my setting to allow access to the following site: https://sport365.stream/

Hmm. We’re having trouble finding that site.

We can’t connect to the server at sport365.stream.

If you entered the right address, you can:

   Try again later
   Check your network connection
   Check that Firefox has permission to access the web (you might be connected but behind a firewall)