Firefox 技術支援討論區

Sometimes all add-ons / extensions break randomly and are disabled (the icon of the extensions is also broken under "Manage Your Extensions").

The extensions are visible under "about:addons", but the slider is turned off and the icon in front of each extension is broken / empty.

It seems that deleting these 2 files- compatibility.ini and extensions.json inside the firefox profile folder, usually fixes the issue. Only these 2 files though, don't delete anything else.

No need to mess around with the ff profiles or anything else, just deleting those 2 files and restarting the firefox usually fixes the issue with the "unregistered" addons.

This thread is for the search function, as I found some VERY old and outdated suggestions for the aforementioned issue using the search function.

I wonder what causes the extensions to "unregister" randomly.

On the page listing passwords, it was possible to sort them by "Alerts".

In settings, there is an option to enable checking the vulnerable passwords: https://support.mozilla.org/en-US/kb/firefox-password-manager-alerts-breached-websites

On my other laptop using Firefox v121, the alerts are properly displayed. But on my second laptop using Firefox v124, the alerts are gone. I can't sort password by "Alerts", the option isn't there. Both laptops share the same Firefox account and have password synchronized between each other.

Obviously, I ticked the "Show alerts about passwords for breached websites" box in the settings but it looks like it does not nothing. I also checked in "about:config" and everything seems good.

Is this feature gone?

Recently, I have been unable to hold down backspace to delete multiple characters in certain text boxes in Firefox. Namely, in the EndeavorOS forum post text box, Google Docs, and the google search box. I am not experiencing this issue with any other app, and in chrome, with the same pages, the issue doesn’t occur. The issue also does not occur in the URL box or the forum post text box here. The issue still occurs in troubleshoot mode.

Hello, Firefox randomly downloaded a file, with seemingly randomly name, that is 0 bytes and in download manager the source is moz-safe-about. It happened when I was accessing a popular wiki site. I opened the file in notepad, it was empty. I put it on virus total and came back negative, as it is an empty file. I've curbed through the support tickets here, using the keyphrase 'moz-safe-about'. I understand this was/is quite a common problem, but it still makes me quite worried and left a sour taste in my mouth, as I haven't understood any of the explanations. I have enabled firefox to ask me whenever it wants to save something (I have no idea why this isnt the default state). Happened on a somewhat fresh, updated win 11 installation. I'm also attaching more information here with a picture. Long story short: should I be worried? Am I overreacting and this is just some sort of a bug that occurred while getting a sites data? Thank you for your time.

When I open firefox it is fine, then ads, buttons, means of surfing then net opens new windows (according to task master) and never closes a window. So once I'm into a game or web site, it's taking over half of my memory (showing like 11 firefox windows open). I can't play any of my games, even minecraft (which is odd). This didn't happen til this last update. Right now I'm stuck at home mending a broken hand, so I kinda need my browser games where I only use my mouse. If there's an easy fix, I'd really like some help in fixing this issue please. Thank you, Lisa Pearson

Have just noticed that there are no longer green Norton check marks against web results. Have spent all morning in live chat with Norton. They say it is the way it has been set up. Very disappointed as they check marks were very useful.

For introduction, sorry if My English was very bad.

Suppose I was in YouTube (https://youtube.com) domain name, then from that URL, I went to https://youtube.com/history (that is, all in the same domain name YouTube, but different URL) by clicking the history button. The same I did when I clicked https://chat.openai.com/c/d93ac426-c5d1-451b-abc4-fc82739f..... from https://chat.openai.com/c/d93df...... (went from one chat to another) or to https://chat.openai.com/ (went from current to new chat) by clicking the list of chats at leftmost vertical panel. When I saw the top left corner of Firefox browser, the "round circle arrow" reload button was not change to "X" or any other symbol specified that the page was going to different link (different URL). Previously I have had went to this https://github.com/microsoft/playwright/issues/15781 page, and mostly not specified the problems at all. I went to ChatGPT and it said that "I must change the 'false' to 'true' of browser.tabs.remote.separateContentProcess object/variable in about:config. When I searched for that, it seems I found browser.tabs.remote.separatePrivilegedContentProcess" and I have had toggle this to ensure if YouTube, ChatGPT, or other domain will refresh/reload the page when it went to different URL in the same domain, but nothing happens.

The problem is, this is not happen in Chrome Browser. Because of Firefox is my default browser, multi-functional, configurable, I want to make this behavior can also happens in Firefox rather than Chrome. Is there any solution of this?

Hello,

Why doesn't "open previous windows" work? It can't be checked off in settings. It seems other people have this problem. Are there any fixes? I have a Windows computer with Windows 11. It works on my Android phone, but not on my desktop.

Thank you, Tom

When I open Firefox to my home page any additional tabs that I open keep crashing. The page tells me that it has crashed and there is a restore tab button there but that doesn't work and the crash message just comes back.

I am running Firefox 124.0.1 on Mac OS Sonoma 14.4.1.

I set Firefox as my default browser. However, when I have links that should redirect and open in an external application (Apple News, Facebook Messenger, etc.), Firefox does not redirect to these external applications. I have searched the FAQ and the internet but haven't seen an answer to this. As a result I have switched my default browser back to Edge, which functions as expected.

I'm having this exact problem from here , but browser.taskbar.lists.tasks.enabled has always been set to true. Toggling it does nothing in itself in between restarting my machine. I am certain it's not a jump menu thing because this isn't about shortcuts (and besides the point, enabling the jump shortcuts from my OS side of things does not display it either way). I just want the stuff that the user in the above link listed.

Coincidentally, I had this exact problem a short while before, and I think it may have had to do with an update, because I remember Firefox updating at least twice fairly recently and it is in this time I've noticed this issue. The first time around it resolved itself, but this time it has not and I do not know the cause.

Unpinning/pinning the icon on the task bar does not resolve this either. It seems none of the conventional solutions in the past work, so unless I am missing something, something broke.

This one really caught me by surprise! I have an internal Django database system. Staff typically use Firefox or Chrome to access it from Linux or Windows machines. As part of this system, it uses Grappelli library which in turn uses TinyMCE V3.5.8. Specifically, in a text box TinyMCE provides advanced editing and fonting. Allows the user to embed links or images. This system was working fine on Django 2.2. My provider (Python Anywhere) retired the server image I was running on, so I updated everything to Django 4.2 on their latest "haggis" system image. Everything seemed to transfer over without any errors - at first. In fact, it was a week later somebody tried to change a font colour by clicking the popup button that opens a colour picker. That pop up looks blank! (its not, the HTML is there but without the custom CSS nothing is visible)

In developer mode on Firefox or Chrome I can see what the problem is: The popup is disconnected from the parent. The parents CSS and classes - specifically tinyMCE - is not present. So its missing the styling and JS to operate. One of the first things the popup JS does is copy in the tinyMCE and tinymce classes from the parent. But they are not there, in fact .opener is null and .parent is stripped down.

What is really weird is on my test server, where I tested everything before updating the live server, it works! The test server uses Django's "runserver" to run a very simple (unsecure) http server just to test code. Whereas the live server is locked on HTTPS.

What confuses me is I don't see any console log messages that would indicate the browser decided to "protect" me. How can I figure out what is going on? Or disable this feature for a test?

I am writing this on my Dev machine using the browser I test with, so I shall try to paste in tech info below.

Just to reiterate, in this browser I can have my test server in one tab, my live server in another tab, test server popup works; live server popup does not.

Thanks in Advance, Richard

Firefox doesn't work with power management. It essentially turns the screen off and then sends the laptop to sleep when watching videos (in full screen). I have tried to disable hardware acceleration, but it didn't fix my problem. I am on 124.0.1 version - flatpack version on fedora, as the actual fedora version from "discover" app center cannot play videos at all. I am running on fedora 39, kde plasma, wayland.

I've become VERY diligent about replacing my old, simple passwords.

I no longer repeat passwords, have long complex logins, everything (not to mention 2-factor notification on sites that have it)

I was shocked that after I updated to 124.0.1 that alot of my old passwords showed back up in my saved logins

Fortunately that doesn't mean that those are still active passwords on there respective sites.

However, how do I get my "saved logins" back to it's form BEFORE I updated to 124.0.1.....it seems that the update is what did it

the only solution I can come up with is just manually delete all the old ones that showed back up...I really don't want to do that

For what it's worth- I do have a "Old Firefox Data" file on my desktop

I'm currently running MacOS Sonoma 14.2.1

Thank you I hope you can help

Every time FF does an update it deletes my saved sites on the FF home page. When I try and put them back in the blank spaces it will not let me. I have tried reinstalling FF and it does not help at all. I try in safe mode and it does not work either.

Hello everyone,

I posted my issue on the french speaking forum a few days ago https://forums.mozfr.org/viewtopic.php?t=153652&sid=96223ded5b326b4da4114d4c0fb4b740 I think I've had this bug since the last update of Firefox. I have checked on other browsers (Edge and Opera), and I have no problem with them. Its also ok on my mobile phone ... with Firefox !

Thank you for your attention and any help you can provide.

Regards Damien

I would love to remove CNN and MSNBC from appearing on my computer. If I can get them from auto playing that would be nice also. What do I need to do? Danny *Email removed for privacy*

Hello,

I'm using a PC with windows 11 and my Firefox is up-to-date 124.0.1 (64 bits).

1- It's been several years since a "full screen <=> rest of page" transition was implemented on youtube (using the scroll wheel for example). Is there a way to completely hide YouTube's vertical scrollbar in full screen mode?

I've checked with Opera and Edge browsers and their behaviors are normal in my mind, as the bar is simply hidden in full-screen mode, no matter where I move the cursor. https://ibb.co/nkJzb8S

On Firefox, it is hidden but only if you don't move the mouse or hold the cursor over the scroll bar. https://ibb.co/VW3JTzp Is this an expected behavior in Firefox?

Otherwise, I've tried a couple of "hide scrollbar" style add-ons, but nothing worked, at least for this particular vertical bar, in full screen mode. I also tried the Troubleshoot mode, and to delete the internet cache with no more success. Here's how it looks in pictures (moving ones :) ) to make it clearer https://www.youtube.com/watch?v=UrJa60LHEws

2- Another question please, why are add-ons disabled on mozilla.org pages, and is there a way to enable some of them on there ?

Thanks for your attention and any help you can provide. Damien F.

Hi. I have two main Mac computers that I browse the web with, a 2020 iMac 27 with 6-core Intel i5 and Radeon Pro 5300 GPU. My secondary computer is an older mid-2012 MacBook Pro with dual core Intel i5 and HD Graphics 4000.

I am aware this Macbook is over a decade old now, and I plan on getting a much newer model within the next couple months. For now, I'll have to make do with this when my iMac is busy with other tasks (mostly rendering video). I have installed all the latest Mac OS updates the Macbook can support, which is Catalina, and Firefox is also the most current version 124.0.1 64-bit.

I tend to use Instagram via Firefox for the most part, and on the iMac, there are these little animations when doing things like double-clicking posts to like them, which causes a small flying heart to appear on the post for about a second. Flipping through multi-image posts is also animated when clicking the left and right buttons, resulting in a slide animation between photos. Small text pop ups also have animation as well.

However, using Firefox on my Macbook, those animations don't appear. I've enabled hardware acceleration, and the animations still don't appear. I've also whitelisted Instagram in uBlock Origin, and the result is the same.

I tested other websites that I can compare with the iMac, like Google Maps and the official Nintendo Animal Crossing website. Both sites run smoothly on my Macbook, with all animations functioning like they should, and Google Street view also being smooth with no visual glitches or other reduced functionality.

I will note the screen resolution on the Macbook is 1366 x 768 compared to the large iMac. My question is this... is Instagram disabling these UI animations on my Macbook due to it's age and/or screen size, is Firefox doing that, or is this a bug in regards to Mac OS Catalina?

These are very simple animations, so it's strange that they don't appear on my Macbook, despite it still being capable of showing web page animations with other sites. The Like animation in particular is helpful as it provides visual feedback to my preferred way of liking posts there.

I changed computers. I installed Firefox. I followed these directions:

Back up and restore information in Firefox profiles https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

I copy the contents of the profile folder from the old computer to the new profile folder on the new computer. I opened Firefox and my bookmarks and Add-Ins were not restored. I manually imported my bookmarks from a backup and got them restored. How do I restore my Add-ins and all their settings and configuration files?

Why did that profile files restoration restore my bookmarks and Add-Ins?

Thanks to anybody who can help me.