Firefox 技術支援討論區

For the longest time (can't pinpoint when it started) I've been having issues with Firefox on desktop (Macbook) playing videos and occasionally audio. Video playback will be functioning fine, then there seems to be a "trigger"...For ex. I have noticed this is often me trying to play a Twitter video, which won't play normally, and suddenly NO video playback of any kind (and sometimes audio) will work...Youtube, Netflix, you name it.

The only thing that "fixes" the issue (until it pops up again the next time) is quitting Firefox and starting it back up again, usually clearing my cache first for good measure. I have tried disabling all extensions and it has no effect. I have tried playing the video in a private window/incognito—no effect. If I open up Chrome and try to play the same videos I have absolutely no issues.

My Firefox says it is currently up to date, though I am running an older version iOS (Mojave). I have googled and seen many other people having this issue but haven't seen anyone chime in with a fix that actually works. Any ideas?

Hello,

In Windows 10 and 11, Firefox's tab bar and other elements that may be transparent render in Windows 10 using some sort of uDWM method (speculation, I could be wrong?) rather than the traditional win32 window frame as you can see with the title bar toggled on. This leads to elements like the tab bar being black or white, depending on your theme unless you have specified otherwise in your chrome. Highlighted yellow below is my problem area.

In my CSS code, I am trying to extend the system color to be drawn to the tab bar (and in this instance, the address bar as well,) but I can't find any way to be able to do this. I have found forums that say to add -moz:appearance -moz-windows-glass, but this completely removes the window border and leaves the Firefox window unresponsive to controls. The only way to close it is if you close it through the taskbar or task manager.

Note that I am aware of .titlebar-color{color: AccentColorText; background-color: AccentColor}, but that's not what I am going for here. That still draws using Windows 10 modern UI. Windows 7 on ESR 115 or unofficially on 116 still draw with Windows Aero in all parts of this CSS code that are black (highligted yellow below.)

I can attach my CSS code if need be.

Thanks for any help!

Hello Is it possible to get Firefox to clear cookies at the close of Firefox but still keep forum login details and not delete forum login data. Help appreciated Thanks

Dear Sir,

Shahid MBC was working perfect before couple of weeks ago

you can check from this link

https://shahid.mbc.net/en/player/episodes/Tamer-Wa-Shawqiyya-season-1-episode-1/id-1011829

Now there is some sort of an error message of HTML5 video

Hello,

Firefox YouTube HDR mode works in Full Screen Mode (FSM), Picture in Picture (PiP), but not in normal Windowed mode (WiM). This bug appeared in around Q3-Q4 2023, before that the YouTube HDR mode was available in FSM, PiP and WiM mode.

In Safari the YouTube HDR content works in FSM, PiP and WiM mode.

Firefox 115.7.0esr (64-bit) macOS Sonoma 14.3 ( I updated the system from macOS 13 in the last 2 weeks ) MacBook Pro 14", 2021 w/ Apple M1 Pro (1000 nits sustained full screen, 1600 nits peak)

This issue exists in all HDR videos what I tested on YouTube.

Video ID / sCPN DNL0IDYKzZs / R0TW 6WC7 574W Viewport / Frames 958x539*2.00 / 1 dropped of 1912 Current / Optimal Res 1920x1080@30 / 1920x1080@30 Volume / Normalized 100% / 100% (content loudness -7.1dB) Codecs vp09.02.51.10.01.09.18.09.00 (335) / opus (251) Color arib-std-b67 (HLG) / bt2020 Connection Speed 13936 Kbps Network Activity 0 KB Buffer Health 41.00 s Mystery Text s:4 t:1039.96 b:972.800-1080.966 P L pbs:3824 Date Fri Feb 02 2024 08:17:38 GMT+0100 (Central European Standard Time)

My Norton virus detection software regularly finds viruses and Trojan horses in the directory: C:\program files\Mozilla Firefox Why?

It seem to happen after using Facebook or more often Craigslist. I tried putting a read only attribute on this directory, but it still happens.

Norton then requires a reboot. So it is a hassle.

Does anyone have any ideas as to what is going on?

When I check Firefox for add ons (Manage your extensions), I see the two that I installed. When I use "Help -> Troubleshooting Information" "Application Basics": Multiprocess Windows "Remote Processes" , I see in addition: Amazon.co.uk Amazon.com DuckDuckGo eBay Wikipedia

How do I eliminate these?

I am having problems with your Firefox web browser a lot of websites seem to keep crashing and refuse to load and sometimes i am getting errors like this:

https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect

I have checked all settings everything is correct and my web browser is up to date!

I am particularly having this problem on my windows 7 laptop it is a 64bit version.

Any help would on this would be highly appreciated!

Kind Regards

Mark.

My main page in eBay is only loaded when using Firefox trouble shoot mode. In regular mode the page hangs, only the headers are loaded, no detail lines.

Please enable whatever that functionality elsewhere.

When I clicked troubleshooting mode FF unexpectedly closed my Private browsing session and all the tabs. How do I reopen them?

I did not expect FF to close on me like that. I thought that as I was in a private browsing session FF would have warned me that it was about to close had it been necessary.

I'm guessing that my open tabs have been lost permanently because you didn't warn me and that all that time I spent is now wasted.

Life is really simple except that other people make it problematic.

Just a couple of quick questions for CSS coding as of Firefox 115:

What CSS code refers to the shield, padlock, permissions, or all other toolbar buttons in the address bar?

When using control to select multiple tabs, what code refers to the outline and text color of the tabs?

Images attached for reference.

Thanks in advance!

I really like Firefox, and have been using it for many years. I even used Netscape navigator back in the bad old days! But there are two things that really annoy me:

- I can't seem to be able to place bookmarks into folders on the desktop (like I can with Vivaldi). For example: I visit a lot of news sites, so I'd like to have a folder called "News", and put them all it there instead of having my news site bookmarks all over the desktop. I just find it a cleaner way to organise my desktop.

- I can't seem to customize my search, apart from selecting between the default search engines. I'd like to be able to search "google.co.za" instead of "google.com", but there doesn't seem to be a way of changing that (again, like I can with Vivaldi).

If I could sort these issues out, Firefox would be my main browser, and I'd scrap Vivaldi as I find that it's getting too "heavy". (Of course, maybe these features contribute to that!)

Thank you.

On homesnap web site I get a pop-up window for homes.com. I can't get back to homesnap & I can't get rid of the window to redirect to homes.com. What can I do? Thanks

To log into my mortgage lender's site I have to enter my email address. Beside this field is the Facebook container symbol; mousing over it warns me that if I enter my email here, Facebook can track me. Mortgage Lender used to allow me to log in with a user name, but now requires my email address, which apparently gives Facebook access to track me. Tried speaking to the lender about this, but they simply assert there are no Facebook trackers on their site. So, any workaround for this besides just doing all my business with them by phone from now on?