Firefox Community Forum

Only hours after my previous use of the picture in picture function to watch YouTube via the mobile site on the app browser, the function suddenly stopped working.

It would play the videos when I was in other tabs, and with the app itself closed. However, as soon as I opened it as a picture in picture window, the video paused and refused to restart playing.

This far, I have:

• cleared the cache
• force quit the app and restarted
• double checked that picture in picture was enabled (it was)
• made sure the app is up to date (it is) and compatible with my phone (it is)
• made sure the Video Background Play Fit was still enabled and up to date (it is)

None of these issues has resolved the issue. As the issue is specific to the play to play function, and is not effected by closing the browser or switching tabs, I believe it is an issue with the function, not the site.

Hello. This question concerns the Windows 11 desktop version of Firefox.

I have long used the Home and End keys on my extended keyboard to scroll to the very top of any given page in Firefox (Home) or to the very bottom of that page (End).

But, lately, I notice that, for no reason I can figure out, Firefox no longer responds to those shortcuts. Now, when I tap Home or End, the page may, at first, scroll up or down slightly but not to the top or bottom. If I press Home or End again, nothing happens at all.

Sometimes, if I press Ctrl + Home simultaneously or Ctrl + End the page will scroll to the top or bottom respectively.

Why has Firefox's behavior apparently changed? Is there an issue with my keyboard or operating system settings? (I use a Logitech G915 keyboard.)

Please let me know how to restore Firefox's shortcut functionality, where I can tap just Home to scroll to the top of a page or only End to scroll to the bottom of a page.

Thanks and be well.

Hello:

Over the past few weeks I notice Firefox lagging in performance -- e.g., pages taking too long to load. Simple profiling tells me that most time seems to be going in "WebRender display list", and "DisplayList building". Sometimes, it is so slow that I have to use other browsers.

I uploaded the profile here: https://share.firefox.dev/4j6f5Mp

My machine:

System:

 Host: mark Kernel: 6.8.0-56-generic arch: x86_64 bits: 64
 Desktop: Cinnamon v: 6.4.8 Distro: Linux Mint 22.1 Xia

Machine:

 Type: Desktop System: LENOVO product: 90L50018GE v: IdeaCentre T540-15AMA G
   serial: <superuser required>
 Mobo: LENOVO model: 3148 v: NOK serial: <superuser required> UEFI: LENOVO
   v: M2CKT53A date: 03/20/2024

CPU:

 Info: 6-core model: AMD Ryzen 5 3600 bits: 64 type: MT MCP cache: L2: 3 MiB
 Speed (MHz): avg: 2631 min/max: 2200/4208 cores: 1: 2057 2: 3942 3: 3600
   4: 2200 5: 2200 6: 2200 7: 2200 8: 3190 9: 2200 10: 2200 11: 2200 12: 3389

Graphics:

 Device-1: NVIDIA TU117 [GeForce GTX 1650] driver: nvidia v: 550.120
 Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X:
   loaded: N/A failed: nvidia gpu: nvidia,nvidia-nvswitch resolution:
   1: 1920x1080~60Hz 2: 1920x1080~60Hz
 API: EGL v: 1.5 drivers: nvidia,swrast platforms: x11,surfaceless,device
 API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 550.120
   renderer: NVIDIA GeForce GTX 1650/PCIe/SSE2

Any suggestions?

Bonjour

Depuis 72h Video DownloadHelper ne fonctionne plus du tout sur mon PC. Il ne détecte plus aucune vidéo quelque soit le site, et même si la vidéo est en cours de lecture. Je suis pourtant titulaire d'une licence est je n'ai eu aucun souci avec auparavant.

J'ai tenté de le désinstaller et de de réinstaller sans succès

Merci pour votre aide

Isabelle B.

Videos over a certain resolution won't play on Twitter/X. Anything 1080 and over vertical won't play. I get audio, but not video. If I use Maxthon (Chrome) I can see the video. I've downloaded the video files and those that are 1080 vertical are the ones that won't play in Firefox. In the picture I'm sending, you can see that Firefox is stuck on the very beginning of the video and the Maxthon video has started, hence the subtitles. Is there a setting in Firefox that will allow me to watch these videos? Thank you.

Hi, Some official/formal Websites refuse to accept my Firefox as an acceptable browser. I am using Firefox browser Ver. 136.0.2 (64-bit). According to you (in the browser) and to internet information it is the latest/the current version. An example of such a refusal from a website is from the DB/Deutsche Bahn official website, dated 24-03-2025: See uploaded image. As with other websites, they recommend other browsers or "the current version" of Firefox (even though I already have it installed). I then switch to Chrome and continue working without further problems. I would like to use Firefox though, but apparently cannot. I need advice. What am I doing wrong? Why is my current version of Firefox described as outdated? Thank you.

Email: ripken@t-online.de

I have a new macbook air running Sequoia 15.3.2, firefox is up to date, my battery which should technically last about 12 hours and I only get 5. Ran through everything with Apple and they said it is a Firefox issues. I don't have any extensions, add on etc. Thoughts?

After updating to v 133.0, when maximizing Firefox (not F11 fullscreen), a taskbar that is set to "auto-hide" will no longer unhide when mousing to the bottom of the screen. This did not occur with the previous version (132.0.2).

This behavior is also unaffected by the "devtools.toolbox.alwaysOnTop" setting in about:config as i've tried switching from the default "true" to "false".

Update: Still persists in 136.0.2

Hi, for some reason firefox has begin crashing this past week, when I'm on Soundcloud and I press the play button. Today it also crashes when I try to by a bus ticket on Flixbus.dk, this has not happened before.

I looked up the troubleshooting page concerning crashes and I tried to go on the sites in troubleshoot mode, it still crashes.

I have the reports here: bp-df051f75-8783-417f-98c1-f75b90250325

bp-c87b457c-be5c-409a-87cf-ad9f30250325

I believe the first one is for Soundcloud, the second one is for Flixbus.

Thank you!

I was in the process of writing a somewhat lengthy response and went to another webpage or webpages and when I went back to the webpage where I was writing the somewhat lengthy response, the webpage was completely blank! The Back and Forward buttons were grayed out, Refreshing the webpage did nothing so there was NO way to get the webpage back. Interestingly, when I hover over the URL, at the end of the URL for the webpage, it had "about:blank." Things like this are very frustrating and waste a lot of my time.

In addition, another problem I reported on 3/20/25 (link is: A webpage I just closed recently is not listed Back arrow issue) has still no response.

Also another frustrating thing about the Firefox browser is that at times the Bookmarks sidebar disappears.

I need a reliable browser, not one that sort of works! I request that these issues be addressed soon.