Firefox Community Forum

I just started having an issue with my browser where every time I tab out of a tab playing media, the pop-out video appears on its own. It's quite annoying. How do I stop this from automatically happening?

since firefox 133.0.3 i can no longer use video controls in youtube. youtube video controls (scrolling an sound volume) work when youtube is in firefox picture in picture mode. when picture in picture is disabled in firefox settings youtube controls still not work.

thx for forcing me to use a feature i do not want. pls fix this.

Starting early this morning I could not open a website (where I purchase supplements) I have accessed in the recent past. I added the address to the DNS listing but that didn't help. In the verification lock icon in front of the address it says the connection is secure. But below it states the Connection verified by a certificate issuer that is not recognized by Mozilla. Prior to 1/22/25, I had no issues opening this or other websites. It doesn't matter if I have my VPN turned off or not, the website does not open. Was the Mozilla update of 1/22 the cause? If so, how do I rectify the issue I currently have? If not, how do I rectify the issue I have?

Hi all,

Just updated to version 142.0.1. I now have the annoying behaviour back that video's on a website pop out on the screen while scrolling on a webpage and they are in the way of the text. I don't want any videos popping out. In the past I had it resolved somehow, so it looks like the update "undid" these. If I'm correct I might have changed a setting in the about:config.

I found multiple articles stating to uncheck "Enable PIP controls" in the setings, section [General] - [Browsing]. This options was moved to the [Firefox Labs] section within the setting. This option however is already disabled.

This page does not resolve the issue: https://support.mozilla.org/en-US/kb/about-picture-picture-firefox#w_why-dont-i-see-the-picture-in-picture-toggle

How can I prevent a video popping out on the screen an float above the web page? I just want to keep it in the window\frame where it belongs.

Link of a page where I have the issue: https://www.telegraaf.nl/video/oprichter-sbs-hiermee-onderscheidt-sbs-zich/86683036.html Also attached a screenshot.

Thanks in advance.

I'm tired of trying to find a solution to this problem, you're deaf!

I have been using Firefox since 2003. to avoid writing unnecessary words, I will simply state, I will leave firefox if you do not eliminate this problem:

firefox eats up all the RAM on my Mac. It is none of your business whether I open 1 tab or 10 tabs, give me the ability to limit the memory used by firefox, otherwise it eats up all the computer's memory.

Everytime I open firefox i have to enable Picture-in-picture in settings, because it somehow gets dissabled everytime i close out of firefox, its annoying and I dont how to fix it, and cant find anyone else having this same problem.

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.

Hello all! Recently I have run into a problem when using the zen browser on my Fedora laptop that I have been unable to resolve despite my best efforts ... specifically, when I double-click on a web-site I have bookmarked and stored under "Bookmarks Menu" it does not come up unless I manually select a container to open it in. I am using Firefox sync so as to keep zen and firefox in sync in both my laptop and desktop and firefox on my Driod. I have reinstalled zen from scratch, I have signed out fo sync and tested, I have disabled my "Facebook Container" extention, and I have attempted to set a default container for the workspace I am in, but nothing seems to change the problem I am seeing.

Do you have any suggestions as to how I can simply click on on bookmarks and see the website without any further clicks [like I used to do up until recently]? Is there any additional info I can give you? Thanks for your time!!! - John C

I know that after PiP(Pitcure-in-Picture) is enabled, I can use it in two ways: one is the button on the right side of the address bar, and the other is the icon button floating on the video. I'm trying to figure out how to keep the PiP button on the address bar while hiding the icon button on the video. I do not want to turn off PiP, I just want to hide the icon button on the video. I tried setting it in about:config, but it only seems to have the opposite effect. If it's not possible to achieve what I want, where can I request this feature from Firefox?

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!

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.

I can't find 'Picture-in-Picture' in browser's settings. if may, then answer in Russian / Я не могу найти "Картинку-в-Картинке" в настройках браузера, ни в основных настройках, ни в fox labs

I am sorry if this is not the place to ask this question. I am new to web development and have been trying to solve this issue for days. I have an ESP32 acting as an http server. I have developed web pages which have separate html, css, and javascript files. These work as expected when delivered locally (i.e. I double click on the the files), however, when they are served by the ESP the style sheet is ignored and I get the message

The stylesheet (url) was not loaded because its MIME type, “text/html”, is not “text/css”.

from Firefox debugger. The stylesheet is ignore across all browsers (Firefox, Chrome, Opera, Edge), however the error is only shown in Firefox. Normally, of course, I would expect an issue on the ESP32 side, however, the non-Firefox browsers do load the stylesheet (even tough they ignore it) and I am able to verify that the stylesheet is identical to the one served locally.

Oddly, if I open a Firefox tab and load the page, switching to developer mode causes several requests for the stylesheet and the styles are then applied. Subsequent refreshes of the page causes the style to be lost and closing/opening developer mode has no effect.

Although I have disabled javascript to try fix this problem, when javascript is loaded I get a similar message (except the javascript is loaded).

I believe I specified the MIME type because I exactly coped several examples

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8"/> 
    <meta name="viewport" content="width=device-width, initial-scale=1"/>
    <link rel="stylesheet" type="text/css" href="styles.css" />
<!--<link rel="stylesheet" type="text/css" href="name-of-stylesheet.css" />    -->
<!--    <script type="text/javascript" src="ESP-UI.js"></script> -->
    <title>My ESP32</title>
</head>

Thanks for the help!

Over the last 6 months, and increasing number of websites don't open on Firefox. I've noticed it most consistently on any of the wikipedia/wikimedia pages, but it's not just those. When I type in an address and press return, or click on a link, the browser just acts as if nothing has happened. There does not show me the loading symbole. If I ask it to open a new tab with the site, the address appears on the tab, but the page itself is just black. Other browsers have no problem loading the same sites. I am on a mac, and using a VPN. Restarting the browser doesn't help, though restarting the computer sometimes does.

Thank you,

So I just updated to Firefox version 142.0, and noticed there is a picture in picture option in the URL bar now. Don't get me wrong. I get the idea, but it's not for me. Is there an option to turn this off within the Firefox settings? I'm currently still on Windows 10— which I'm grateful Firefox is still supporting at the moment— version 1909 and the picture in picture controls setting is currently unchecked but still shows up in the URL bar for some reason. Can anyone help with this?