Firefox 技術支援討論區

I have used Firefox for years and had AVG free antivirus installed also for years. Tonight I had a popup window open from AVG informing me that AVG no longer support Firefox and have uninstalled their antivirus addon with immediate effect.

Does anyone know of a Free antivirus program that is any good and still supports Firefox?

in the firefox browser is there any way to see the casting the browser screen to chromecast on tv. similar to 'cast to media device' in edge browser or chrome browser.

For the past couple of months I have been getting the message www.bbc.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR when loading pages on www.bbc.com website. I have done a search on the internet and it seems this is a common problem with Firefox and does not affect othere browesers. I have done what was advice given online but it does not solve the problem. It is getting so bad I may have to start using one of the other browsers even though I prefare Firefox.

Hello there :)

Please help me restore my browsing session :(

For the past several months I have been using Mozilla, and the feature to restore previous browsing session has always worked well. Even after I clear the most recent history or remove the most immediate cookies, this feature would still work e.g. after I restart my PC or just restart the browser. It would restore all the tabs I was using previously including the most recent tab I was on before the browser closed or restarted. However, this morning, I tried to clear my immediate browsing history as I usually do and the browser froze while I was in the process of clearing this immediate history (continuously displaying the pop-up window/interface for clearing history and not allowing me to do much else on the browser - I couldn't even click anything on the tab I was on, nor could I navigate to another tab and/or open a new tab; and only the close button, and maximize window button, and minimize window buttons were responding). After waiting for a while for it to start working again, I got frustrated and I closed the browser.

I then opened the browser again, but this time, it didn't restore the previous browsing session and didn't even take me to the last tab I was on.

What could have happened this time around? It has not behaved like that for this whole year.

NB: I have not done anything to the browser after opening it! I am still on the same page it landed on when I opened it (just in case).

Hello everyone,

I've been experiencing an issue with my website when viewed on Mozilla Firefox. Some elements seem to be rendering incorrectly or not displaying at all. I've tested the website on other browsers, and it appears to be working fine there. Could someone help me troubleshoot this problem? Any insights or suggestions would be greatly appreciated. Details Website URL: https://greenryenthusiast.com/where-is-the-best-spot-to-spray-starter-fluid-on-a-snowblower/ Description of the Issue: When accessing my website on Mozilla Firefox, certain images and stylesheets are not loading properly. Additionally, the navigation menu appears to be misaligned, overlapping some of the content on the page. This issue is consistent across multiple pages of the website. Steps Taken to Resolve the Issue: I've tried clearing the browser cache and cookies, as well as testing the website on different devices and networks to rule out any local issues. However, the problem persists only on Mozilla Firefox. Browser Version: Mozilla Firefox version 98.0.1 (64-bit) Screenshots or Error Messages: Attached below are screenshots illustrating the rendering issues encountered on Mozilla Firefox. Additionally, there are no specific error messages displayed; the elements simply fail to load or display incorrectly.

CVE-2024-4367 has been announced several days now with MITRE and CIS. There is also an issue/advisory on the github repo for PDF.js which appears that the fix has been merged into the master commit of PDF.js (https://github.com/advisories/GHSA-wgrm-67xf-hhpq).

The vulnerability is pretty serious and yet there is no Security Advisory from Mozilla on affected versions, etc. (https://www.mozilla.org/en-US/security/advisories/)

Is this normal and I am just being impatient?

Hi,

I am encountering an issue where Firefox throws an "Uncaught out of memory" error in the console, despite my system having ample RAM available. Here are the details of the problem:

• Error Message in Console: Uncaught out of memory
• Memory Usage Observed: Using about:processes, I noticed that Firefox's maximum memory usage caps at around 7GB.
• System Specifications: The machine running Firefox has 128GB of RAM, so there should be plenty of memory available.
• Firefox Version: 126.0a1

Given the significant amount of RAM available on my machine, it seems unusual that Firefox would hit a memory limit at just 7GB. I suspect there might be a bug or a misconfiguration causing this issue.

Can you please assist in diagnosing and resolving this problem? Are there any settings or configurations I should adjust, or is this a known issue with the current version of Firefox?

Thank you for your help.

Is it possible to change Firefox's default keybinds? I don't see an option for this in Settings, nor in about:preferences or about:config. Some discussions on these forums suggest autoconfig.conf but that doesn't seem to have any options for keybinds. I found several KB articles on customizing Firefox, but none said anything about default keybinds:

KB: Customize Firefox controls, buttons and toolbars KB: Firefox advanced customization and configuration options KB: Customizing Firefox Using AutoConfig

For example, I'd like to change the keybind to open a private window from the default [Shift]+[Cmd]+P to [Shift]+[Cmd]+N. The latter is standard on most other browsers and is in my muscle memory. Is there any way to do that?

All Add-ons are disabled and Firefox still can not play SOME of the videos on twitter. All I can see is a spinning circle on the center of the frame and the video will never be played. I tried other browsers and they all works well. It seems this issue has nothing to do with my network connection.

I searched this forum and find out some thread reporting issues of not playing All videos on youtube/twitter. Replies to these thread provided some solutions ,like update ffmpeg , set media related options in about:config. I tried them all and neither of them work for me.

My Wife's computer - still on Windows 10 - says it can't start Firefox as it is still running, hitting the "close Firefox now" button just returns us to the same screen. I tried to uninstall and reinstall Firefox it tried to do a "reinstall" it says her profile is no longer available, while inconvenient she still should be able to start it up, but it still gives me the same message. that it is still running and needs closed. Trying to "close it doesn't do anything. I have restarted several times and even did a shut down and restart. Nothing seems to work. I assume some "stub" of Firefox is out there in the system/cache making Firefox think it is is still active but I can't find it to shut it down. Where do I need to go to "end task" on this phantom Firefox?

Other information: 1. We have Norton Security software installed, if that matters. 2. The same seems to happening to Thunderbird, but maybe I need to go to another help forum for that? 3. I am entering this issue from my computer that seems to be just fine with Firefox, so can't send browser data as it is irrelevant to the issue (it's on a different computer and install instance.

setting the default location for Forecast fox.

I seem unable to do this, but I should easily be able to, but despite numerous attempts, I can't figure out how. I've finally given up, hence this plea for help.

If you have a solution, please let me know... Thanx in advance.

I'll not divulge my opinions of this FireFox add-on.

My computer updated with no warning one night, and i lost all personalization and even everything stored in my firefox, the sign ins, passwords, bookmarks, all. is there a way for me to find all that was erased?

Firefox is blocking website reader comment sections, yahoo, foxnews and so on. (version 126.0 64 bit). Windows 11. Comment section still found using chrome or edge. Started with last Firefox browser upgrade? Have not seen any changes to Firefox "Privacy and Security options" . I use Google or Duck Duck Go as search engines. Thanks

Hello dear community,

I have a program that continuously monitors the download folder under Windows 11 for a specific file and retrieves it. I download this file in Firefox, but the said program gives an error.

I have noticed that when files are downloaded in FireFox, they already appear in the Downloads folder with the corresponding file extension with 0 bytes and these are then apparently swapped or merged with the .parts file.

The problem is that the mentioned program now tries to retrieve the unfinished file, which then leads to an error.

Does anyone know if it is possible to customize Firefox so that the file only appears in the download folder when the download is fully complete?

Many thanks for your help :D

Several pages don't display properly. espn doesn't have a menu, cnbc displays and then goes blank, as do some articles on nytimes.com. These and other anomalies all work fine on safari. Any help greatly appreciated. Jim

I have been getting a message that says firefox has something running and cannot shut down. I went into task manager and 'shut down' firefox, but the message keeps on coming. I then thought that I would uninstall it and then reinstall, but it tells me that it cannot uninstall because it is running, -"Firefox is already running but is not responding. The old Firefox process must be closed to open a new window." When I click on ' Close Firefox' nothing happens. when I click on 'Cancel' the message disappears, but will reappear. Then in desperation, I went into program files and deleted the Fifefox folders but it wouldn't reinstall. There is obviously somewhere a file/file which is screwing me up, does anyone know what this it?