Diễn đàn hỗ trợ Firefox

Recently, whenever I put a video in PiP, the whole browser freezes. I'm not sure what causes it. The PiP player itself is playing and working fine, it's the browser as a whole that freezes completely. I can play/pause and even pop it back to its tab, but when I do, the browser is inaccessible to me because it freezes, despite the video still playing normally. I can only terminate the browser with Task Manager, otherwise the video will continue playing and the Firefox process goes on the background.

I have tried Googling for a way to fix it, but nothing seems to work. Some of the recommendations were to turn Hardware Acceleration off, allow autoplay, upgrade GPU drivers, and test in Troubleshoot Mode. I have autoplay completely off (including in about:config) and gave an exception to YouTube. I don't think this is the problem though, because I've had it set up this way for a long time, and the browser freezing only started happening recently. I have had Hardware Acceleration off for a while too, so it's not because of that. My GPU drivers are up-to-date (Nvidia). The browser still freezes in Troubleshoot Mode.

The problem is not limited to YouTube. Wherever I can pop the player off with PiP, it will freeze the whole browser (like Twitch or any other site with video player capabilities). I tried playing a video in a different browser and it worked just fine with no freezing, it only happens in Firefox.

I noticed that the common issue people report is the PiP player itself freezing, but my case is the exact opposite. The PiP plays fine while the rest of the browser freezes. I really like this feature and don't want to turn it off if possible. I like to pop the video out and watch it play while I scroll around on my desktop.

I like to use picture-in-picture mode to watch a YouTube video in the corner of my screen while editing an image or playing an online game (since I like having something to keep my brain active while I'm doing something). Recently, however, this has resulted in my computer locking up. I don't really know how to describe it succinctly, but audio becomes super stuttery and it takes a second or more to render a single frame. Last night this resulted in the loss of an in-progress image (don't worry, I took photos of my screen so I could recreate the image), so I want to figure out how to stop this.

Just to cover my bases, here's my specs:

Device name LAPTOP-AI6N0TEJ Processor 12th Gen Intel(R) Core(TM) i3-1215U (1.20 GHz) Installed RAM 40.0 GB (39.7 GB usable) Device ID BDD80B46-B5E1-4B25-9FA0-3F833BD30C05 Product ID 00356-07436-33870-AAOEM System type 64-bit operating system, x64-based processor Pen and touch No pen or touch input is available for this display Edition Windows 11 Home Version 25H2 Installed on ‎11/‎7/‎2025 OS build 26200.7840 Serial number PF4RQKQJ Experience Windows Feature Experience Pack 1000.26100.291.0 Manufacturer Lenovo

System Configuration

• OS: Pop!_OS 22.04 LTS (Clean install).
• GPU: NVIDIA GeForce RTX 4050.
• Driver: system76-driver-nvidia (Enabled).
• Graphics Mode: Hybrid (Command: system76-power graphics hybrid).
• X11 Scaling: Optimized for gaming/full-screen apps.

Firefox Picture-in-Picture (PiP) Issue

• Problem: PiP window loses "Always on Top" focus or vanishes when switching workspaces/tasks.
• Config Changes: Set 'focusmanager.testmode' to true and 'media.videocontrols.picture-in-picture.video-flips-visibility-on-focus-change' to false.
• Window Settings: Focus set to "Click" via GNOME Tweaks/Settings.
• Environment Test: Tested launching via 'MOZ_ENABLE_WAYLAND=0' to bypass Wayland focus logic.

Software & Tools

• Tweaks: Installed for font hinting (Slight) and window behavior management.

I have searched these forums for "always on top" and the results were completely useless, so I assume no one has asked this question before, or the search engine is ineffective.. anyway, the question is:

When watching a video where you can click the right-side button to pop the video out to Picture-in-Picture mode, the video window that pops out is permanently set to Always On Top. It is often inconvenient for it to be Always On Top. I would like to be able to right-click on that video window and be able to select an option to disable Always On Top, or failing that, I would like to be able to disable this Always On Top via manually setting something in about:config. Can anyone recommend a solution that doesn't involve installing any third-party software to control Always on Top behavior? Thank you in advance.

When a video is popped out, in PiP mode, and the "owning" page is scrolled such that the video "origin" scrolls off the viewport, the PiP video pauses. If the video is started again, and the page is scrolled more, it will re-pause.

This seems to be a Firefox behaviour and not a site-specific one.

Is there a setting to keep the video to continue playing?

This would be helpful on Twitter/X, for example, when scrolling the timeline with a PiP playing from a tweet.

How can I stop sticky/floating videos in firefox? I've tried every solution possible googling and nothing works. When I browse a page with a video that I don't care about watching (I'm reading the page) a smaller version of the same video pops up on the lower right side of the page and continues to follow me down the page regardless of how many time I click on the "X" to make it disappear, it simply pops back up again once I start to scroll further down the page. This is so annoying !!!

Good afternon,

I am writing to request assistance in disabling the Picture-in-Picture (PiP) feature on my browser. Despite my best efforts over the past few days to disable this option through the settings, it continues to activate when I listen to music on YouTube.

Each time I navigate away from the YouTube tab, the Picture-in-Picture window appears and persists across all my other tabs, which is quite distracting and impedes my ability to work.

Closing the PiP window pauses the music, which is not ideal for my experience.

I am looking for guidance on how to effectively deactivate this feature, as the settings adjustments I have made do not seem to take effect.

Any help you can provide to resolve this issue would be greatly appreciated.

Thank you for your attention to this matter.

When I encounter an embedded video on a website that plays, an icon to toggle picture in picture pops up in the URL bar (see attached image). I don't use picture in picture, and for some websites which have an "endless scrolling" experience with videos, such as reddit or facebook, it is slightly annoying that while I am focusing the middle of the screen, something changes in the top right, making me think a tab has an update and changed title. I have the picture in picture controls turned off in settings (one with the id=pictureInPictureToggleEnabled in general, my Firefox is not English), I thought it would also make said button go away but it does not.

Recently, I've been noticing an issue with Firefox's built in Picture-in-Picture (PiP) feature. When watching media, such as a YouTube video, using PiP, the video runs as normal, but recently, the PiP completely breaks when I tab away from my Firefox window to do something in a different app. This wasn't the case a few months ago, so I'm not sure what changed to make this error happen. I had attempted to disable hardware acceleration to see if that was the issue, and nothing changes when it's enabled versus when it's disabled.

Hey there,

Whenever I use the picture in picture feature on Firefox to watch something while doing other things,it has randomly gained these black bars on the side of the image and I can't work out what is different? If this is a quick fix, I haven't been able to find it, sorry!

Thank you in advance!

The picture-in-picture setting use to keep the detached video visible if I scrolled the original or source page past the video player. Now the detached video disappears and reverts back to the source page when I scroll this control out of view. Is this change intentional and permanent?

Using hyprland, in one specific firefox profile, whenever I toggle PIP and resize it to be smaller than its original size or toggle float on the window, it just closes. Trying it in a different firefox profile, none of these issues are present.

The disabled feature still has a picture in the picture when unchecked. How do I stop picture-in-picture for videos playing in Firefox? Yes, went into settings and unchecked picture in picture, yes, the problem still exists.

Tried the PiP mode with YouTube and it didn't work for me. The video pop-up still appears even after un-checking the box in settings; once I click the X button on the pop-up, the video pauses, and will unpause only if I return to the original tab and press play. I've tried the following:

- Restarting my computer - Used keyboard shortcuts to close the pop-up - Blocked autoplay media on the YouTube website

Thanks in advance.

We are unable to stop playback from the controls in the PIP window for Apple TV when the video playback was started in the main browser window. If we press the control the playbacks stops for a fraction of a second and continues again. Other controls like mute etc. are working as exspected.

If we start the playback in the PIP window we are able to stop it!

If we use Youtube or Amazon as a video source the problem does not show.

If we use Troubleshoot Mode we get exactly the same behaviour.

Any Ideas?

For some reason my install of FireFox on Linux refuses to hide the picture-in-picture button in the address bar on video sites.

See included images; all relevant settings are disabled.

Since a recent version of Firefox was installed the picture in picture control does not work. I have unchecked the option but It still shows in YouTube etc.

I know this can be disabled in about:config but I prefer not going there. I wonder if this will be corrected sometime, otherwise the setting option is pointless.

Another item: I have unchecked the search suggestions in settings but it makes no difference.

Input welcome.