Firefox 社群討論區

When enabling the PiP player window for say a YouTube video from the YouTube website - pressing the 'pause' button on the PiP player window followed by doing any forms of multitasking like opening another window, or opening another program/app or file etc, and then a few seconds later pressing the 'play' button on the PiP player window - it doesn't actually play the video.

You can click the 'play' button over and over and over again but the video in the PiP player window will not play. In order to get the video to play again you have to exit the PiP player window by clicking 'back to tab' and then clicking the 'PiP' icon again.

Using Firefox version 115.0.2

Anyone else experiencing this?

other menus like the pop-up bookmark list menu is fine. i only have this problem with the download menu and the bookmarking menu. i only remember this happening after i started to tweak and customize my windows 11 os, so maybe something in that process happened to break the text now but i have no idea where to look. i have cleared the startup cache, refreshed firefox and even uninstall/reinstalled it completely fresh (this is also what made me believe this is an os problem).

I cannot use, update, uninstall, refresh, or reinstall Firefox (and haven't for four or more years). I always get this message: "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window." But I have (obviously) shut down the computer entirely any number of times in all those years. What can I do? I will be taking college classes and Firefox is one of the few browsers that the college supports.

Hi

I have a new mac mini with ventura. I am trying to transition from Chrome to Firefox and I have one single thing that is stopping me from doing that.

It is the color of the scrollbar thumb. Currently it is light grey on slightly lighter grey. Almost impossible for me to see with my older eyes.

What I've done so far is to set this to true in the firefox config:

toolkit.legacyUserProfileCustomizations.stylesheets

and created the userChrome.css in the correct profile folder (from firefox troubleshooting information page)

What I want is that anytime the scrollbar displays, I want the thumb to be blue so I can see it. I've not been able to find the css to do this.

Please help me with this, Chrome has become almost unusable and I need to switch to Firefox.

thanks Nick

Firefox is displaying a smaller font on some websites. It only does it new windows, not in a private window and other browsers are fine.

Screenshots attached show the correct size (first attachment) and the incorrect smaller size (second attachment).

It's not windows accessibility aka ease of access, as nothing else is affected. All pages are on 100% zoom. I've gone to settings -> font -> advanced and the "Allow pages to choose their own fonts, instead of your selections above" is ticked.

Any ideas please?

Dear Mozilla

I wrote to you earlier today about a problem i am having with themes.I change themes quite frequently and have a lot of them on my list. After opening and closing the browser once or twice the list of themes no longer shows what each theme looks like. I reset Firefox and the image of each theme reappears. It's quite tedious as i said to have to do this once or twice a day. Is this problem occurring because i have too many themes on the list?. I have turned off all other extensions and the same problem keeps happening. I don't know what to do.

/edit: Please put a space after periods as there were unintended links.

I have lots of bookmarks, which I organise into folders and subfolders. In the last month or so, Firefox will no longer save them to the folder I specify from the pull-down menu when saving but just adds them to the general bookmarks menu. To sort my bookmarks, I have to go into Manage Bookmarks and move them manually. What's happened?

I download a file. It stops and speaks of a security risk. The website is https, but the file is http. Is there a location I can pre-approve all files from the url to override the objection? Thanks.

I had something like 7 windows open 10 minutes ago (yes I am a tab hoarder). I was trying to run a game that used a lot of RAM, so I decided that I would close ALL of my firefox tabs in hope that the game would run smoother with the 5gb that Firefox was using. I didn't think anything of losing the tabs because I had accidentally closed windows in the past using the big red 'x', and an easy ctrl + shift + t always restored the entire window no problem. When I tried to open firefox again within the next 5 minutes, only 3 of the windows restored themselves, I assume using the general > startup > open previous windows and tabs setting. Using Ctrl + Shift + T did nothing to restore them. Please help, as the windows that did reopen were the ones that I cared the least about.

No matter what I try, I can't allow any sites to present my screen or a window, I can't find an option in settings neither in the option to allow in the tab. The "allow" button is simply not available at all. How do I solve that? The problem happens in all sites that I've tried: focusmate, cofocus, discord, google meet, etc

I am currently fresh on Fedora 38 and Firefox 115 with multimedia codecs installed such as ffmpeg. I have problems playing videos on Facebook or Twitch, like in myday stories, reels, and feed. But in YouTube, videos plays perfectly so I think there is a bug going on here? I already tested turning hardware acceleration on and off but no avail.

Hello. For a couple of months now I can't seem to be able to reproduce some videos on YouTube (depends on their format) and no videos at all on Facebook, for example. I have the same issue on both regular and dev versions. I tried many solutions from the forums but no success so far.

My OS is Linux Ubuntu 20.04. Browser and video drivers all up to date.

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trying to open 3d model on this site https://teemo.gg/viewer/league-of-legends/champions/katarina/0 its start loaded model but nothing was showed in browsers based on chromium everything works fine

When I play a video in fullscreen, there is a strange black border that appears around the video which makes the content smaller than it would otherwise be. This border does not display in Safari or Chrome, just in Firefox. It also occurs in every media player I've tested, including YouTube and Netflix.

Annoyingly, I can't get this to show up in a screenshot. It seems like Firefox guesses the aspect ratio or resolution wrong when it puts media in fullscreen, and it has the effect of downsizing the actual interactive part of the display. Meaning, I can't move my mouse into the border area to take a screenshot of it.

I'm on an ARM Macbook running MacOS 13.5, if that matters.

Is this a bug, and/or is there a way to fix this?

just happened today....only the AARP website is not using my browser Zoom setting of 120% it is using browser Zoom setting of 160% which is too large....I reset it on each page but it wont stay at my browser Zoom setting of 120% this happened a year or so ago....cant remember the solution

After removing elements from a website with another add-on, I'm left with a considerable white gap at the top.

I can manually change (pointless) the margin-top property to -100px, but how do I do this with the Stylus add-on?

Stylus doesn't like negative values:

margin-top -100px

10:20 Expected "{" but found "-100px".

Is there a lighter/simpler alternative to Stylus?