Firefox 技術支援討論區

I go to youtube, open a video and the audio plays just fine, except there is no visual. The video says its playing and I can hear it normally but I can't see anything. Subtitles show up, but the place where the video is supposed to be is just blank, the same as the background of the page. Weirdly if I click the settings button on youtube, the one next to the sign in or account button, the video will display as long as that menu is up. If I close the menu the video goes away.

I have refreshed firefox, deleted and reinstalled firefox, removed all my extensions, turned hardware acceleration off (and then back on when it didn't work) as was recommended in a similar post a few years ago, and restarted my computer. Youtube still won't show me a video. It works fine on chrome, just not firefox.

I uploaded a screenshot of an ad, which doesn't play but shows the outline of the video player, a screenshot of a normal video where the area the video should be in is just more indistinct background, a screenshot of the video appearing normally when I have the settings menu open, and a screenshot of the captions loading properly over an empty void.

Edit: I installed the Enhancer for Youtube extension? Which I haven't ever installed beofre? And now Youtube works? Why

2nd Edit: Its broken again. I changed literally nothing, just restarted my computer for an update but im getting blank screens again

I inserted a pic of my problem. I want to save a twitter bookmark in my twitter folder in the toolbar but it comes up with TWO different folders! When I save to one it shows up in the toolbar folder, if I choose the other it does not and I have no idea where it goes. How do I remove the second twitter location?

Hi,

All of a sudden I need to click the bookmark this page star twice to get the drop down menu. I've cleared the cache, stopped hardware acceleration, & disabled addons in trouble shoot mode. No joy.

Any help appreciated. Thanks.

OS: Mac OS 10.14.5 Firefox Version: 113.0.2

Settings gives me multiple options for handling a .pdf file. The first three are (1) Open in Firefox; (2) Always ask; and (3) Save File.

If I select "Open in Firefox," the file will open in my existing window. If I select "Save File," the file downloads to my desktop.

The problem arises when I select "Always ask." If I then select "Open in Firefox," the file opens (in a new tab!) and simultaneously downloads to my desktop!

Is this a system glitch, or am I somehow doing something wrong?

A month ago I started to have problem with twitch. After 5minutes or 2 hours- random times or random tabs, if I have opened more than 1, which is always the case. Some tabs or all, again it's random will give twitch 2000 error and refresh, closing tab,etc nothing will work, except closing WHOLE browser, not just tabs and this is not guaranteed that it will work.

I'm losing my mind with closing whole browser-windows-tabs on different monitors and then re-opening all of that again when I get 2000 error and I always do get it.

Did like 50 re-installs, it's always the same. I tried to go back to older version, but Firefox always want to create new profile saying I have old version installed and I DO NOT want that, I want everything as it is right customized,etc right now.

I've asked this question a long time ago, and received no answers. I resorted to resetting it every time, however a new problem has come about, forcing me to ask again.

Whenever I open my browser, my tabs have reset themselves to default width. I prefer them at a wider width, so I navigate to about:config and edit the browser.tabs.tabMinWidth to 100. I have to do this every time.

However, for some reason doing this now also hides/removes tab close buttons on each tab, which is problematic to my style of browsing.

I had an userCSS file, but even after removing it as a test, the problem persists. If it matters, my style of browsing has me keep two windows open at any given time. I did try to change it with only one window open, but the change did not stick.

Only tab-specific add-ons I have are FoxyTab and a tab suspender.

Any help is appreciated, be it making sure the tab close buttons do not disappear, or be it making sure the tabs remain at minimum of 100 width.

All 3 Deceptive Content and Dangerous Software Protection check boxes are light blue and can not be changed in my Firefox browser settings. I want to be able to uncheck these settings. How do I do that?

It appears that Deceptive Content and Dangerous Software Protection is connecting with google based on what I have researched and this https://www.makeuseof.com/ways-fortify-firefox-browser/ and I view this as a privacy problem.

Since yesterday whenever I put a video on youtube or any other site to full screen it does not goto fullscreen, the photo shows what I mean I have already tried doing this and it didn't work Go to about:config and make sure full-screen-api.enabled is true and reset the other full-screen-api settings to default while you are there.

Videos also do goto full screen on Chrome so it must be an issue with Firefix not my laptop

I am on a unstable internet connection and while trying to download a large file it gets often interrupted. By default Firefox deletes the .part file and I am forced to again download from zero. Is there a config that I could change so Firefox keeps .part files so I could continue resuming the interrupted download?

Suddenly (last day or so) the timestamps on Facebook posts are missing (except on the first on the timeline). The data is there, you can hover over the location where the timestamp should be and the date and time will pop up. This still works as usual on Chrome, so I don't think it is a Facebook issue. Thanks, Robert

So I have installed 1password to my browser but i need the add on to show in my toolbar but when i click customise toolbar, i cant find the add-ons option. Please help

I will be moving all of my data to a new laptop and want to know if I need to have both my personal Firefox profile and the "default-release" profile backed up. The "default" one is over 3GB and has over 20k files in it, and my personal one is only 113 MB with 1300 files — and my thumb drive needs all the extra space it can get. (Why would the "default-release" profile be so much larger than my personal one?)

The old laptop runs on Windows and the new one will have the Linux OS. Will that make a difference in using a backed up Firefox profile? I mean, will the data still work in the new OS?

I just spent 15 minutes browsing and downloading a lot of images. When I was done I looked at my downloads folder and saw only half of them there. I checked the download history in firefox, and couldn't see some files. They were not queued or in progress. They weren't in the download list at all.

I reproduced this. I downloaded an image again. Right click, save as, click save. Then that image doesn't appear in the download history.

I tried some variations. Hitting enter instead of clicking save. Opening the image in a new tab and using ctrl-s.

Still, no image in the download history or on disk.

I quit firefox and re-openned. Still the file didn't appear on disk or in the download history.

Then I kept trying, and I got a second issue, which I think is related.

Often when I save an image, instead of one window popping up asking me where to save it, I get a second window popping up ontop of that, then a third, then a fourth. All ontop of each other. All asking the same thing. They take the focus, so it's not possible to interact with the main firefox window to continue browsing.

Sometimes if I hit enter literally 50 times then it will save the same image repeatedly, and eventually I can go back to browsing.

Sometimes there's more than 50 popup windows (my hunch is more than 100). My only solution then is to quit firefox forcefully. Which is annoying if I have state in other tabs that I don't want to lose.

This has happened many times over many weeks. It only happens on some file saves. I can't figure out why it happens on some, not others. (Right click > save, and also ctrl-s, they both do the same thing.)

This form won't let me attach a screen recording. Only screenshots. That's annoying because you can't really see the behavior from the screenshot. But I'll try. See the dark black border outside the download dialogue? That's normally a very faint transparent shadow. But because there's so many duplicate windows all exactly ontop of each other, those multiple transparent shadows have become opaque.

What you can't see from a static screenshot is that I could see each window appear ontop of the other. If I try to select the filename text and edit it, very quickly another window appears ontop with the default filename again. I can see the Firefox icon in the Gnome bar on the left shaking every time a new window pops up.

(Hmm, it looks like I can't *upload* screenshots either. I click browse, select a file, and then it doesn't get uploaded.)

I'm on Ubuntu 22.10 with Wayland.

I don't know if this issue is a bug in Firefox, or in Gnome. I've only seen this behavior with Firefox in Gnome. Not Firefox on another DE/OS. And not any other application in Gnome. This behavior has been intermittent since I bought this laptop and installed Ubuntu about a month ago.

I had 20 tabs open on one screen. I moved one tab off the the 2nd screen so I could see info between two pages at the same time. When I was done, I closed the browser with the 19 tabs so I was left with one tab browser on the 2nd screen. Unfortunately now I lost all 19 tabs because when I click restore Recently Closed Windows (tabs) the only thing that listed is the tab I already have open.

This has been an issue for a LONG time. I have to remember to close the temporary browser tab 1st then close the main browser with all the other tabs open LAST. I HATE that I lose everything if I don't close the split browser in that order.

Firefox doesn't display blur effect in websites. In the below images Image 1 : apple.com ( Firefox ) Image 2 : apple.com ( Chrome ) Image 3: twitter.com ( Firefox ) Image 4 : twitter.com ( Chrome) It also happens in telegram where right click menu shows blur effect

Firefox (113.0.1 (64-bit), Mozilla Firefox Snap for Ubuntu) won't open files in a filesystem other than the filesystem on which my home directory resides. I have a second filesystem mounted at /970 but trying to open any file whose URL starts with file:///970 elicits a "File not found" error message, e.g. "Firefox can’t find the file at /970/stuff.jpg". Setting security.sandbox.content.level to a lower number (I've tried 0, 1, and 2) does not fix the problem. I didn't have this problem with earlier versions of Firefox; it started after I upgraded to Ubuntu 22.04.2 LTS (x86_64)which got me a newer Firefox as well. Chrome continues to open files in /970 with no difficulty.

mount information for / (which includes my home directory) and /970: /dev/nvme0n1p2 on / type ext4 (rw,relatime,errors=remount-ro,stripe=32) /dev/nvme1n1p3 on /970 type ext4 (rw,nosuid,nodev,relatime,x-gvfs-show)