Firefox Community Forum

I recently made the switch to Firefox full time a few weeks ago, and in that time, I have been getting more and more annoying at how Firefox renders Youtube.com.

If I'm on my feed, and I click to watch a video, watch it and go back, I never know what I'm going to see when it goes back a page. Obviously it goes back to youtube.com, but I never know if it's going to load at the top of my feed, or about ten rows down. Even if I click a video in the very first row, and then go back a page, it may or may not load at the top of my feed. I could also actually click a video on the tenth row, and then when I go back, it might load at the top of my feed, though that is not as common, it has happened. It also sort of, kind of, reloads the page when it goes back, but never goes back to the point on my feed at the spot where the video I just watched is, as Chrome and Brave do.

This is not how Chrome or Brave do things, and yes, I know they use a different engine, and I'm sure that's the reason for this issue. Chrome or Brave, if I'm watching a video and click back to my feed, they are much better at loading what is in cache, even if I the video was on the 100th row. I can then manually refresh if I want to.

Hello Mozilla Team,

I am facing a glitch that is as hilarious as it is frustrating. Firefox has decided that my professional life must permanently take place under a massive, virtual Apple Park Rainbow. And I cannot turn it off.

The Tragic Backstory: This is the system-level macOS camera background. Usually, you disable it via the green camera icon ("pill") in the macOS menu bar. However, the moment Firefox accesses my FaceTime HD camera, the macOS camera menu completely freezes. It becomes unclickable.

What I’ve tried so far (and failed):

   Google Meet says "No effects applied". It has no idea the rainbow is even there.

   I used "Refresh Firefox" to completely wipe my profile. The rainbow survived.

   I forcefully revoked camera permissions via Terminal (tccutil reset Camera org.mozilla.firefox). Upon granting permission again, the rainbow immediately returned from the dead.

   Restarted the Mac multiple times. No change.

   Even opening the native FaceTime app to override the toggle failed, because Firefox seems to have locked the video pipeline down.

It seems Firefox is caching or hard-locking the macOS video effect stream and won't release it, while simultaneously breaking the OS-level menu bar toggle.

I love rainbows, but my clients during business calls are starting to wonder about my sanity. How do I force Firefox to drop this video stream and let me return to reality?

I cannot get into my online accounts, as I have always done for years. After I select the site, the screen looks like it is working, but then a new empty window pops up: the tab says "citi 400 Bad Request" At the top of the empty screen it says: Bad Request. Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.