Diễn đàn hỗ trợ Firefox

I have a laptop that died last week. I just got onto a new device, and would like to restore my Firefox settings from that previous device. So, I downloaded firefox, signed in to sync my bookmarks and extensions... and the old device does not appear in my synced devices list. Is there anything I can do to recover my account data? I know it was synced as recently as a few days ago. The device is completely bricked and I will not be able to log in on it anymore. Is there anything to be done?

All my other browsers work fine but since April 4, 2025 Firefox won’t work at all. Websites won’t load. I have tried to clear my cache & cookies, I have checked my connection settings, I have checked for malware, I have turned off all my extensions and I have completely restarted my computer several times now, nothing has worked. I also did trouble shoot mode & reinstalled Firefox (though I will admit I maybe didn’t do this step properly). I refreshed Firefox. Why is it not working? What happened? I don’t know what to do as I don’t want to lose all my bookmarks and passwords that I have yet to move over to my password manager. Please help.

Firefox version Mozilla Firefox 137.0.1 has caused my access to content.clubrunner.ca to stop working. How do I revert to version 137.0?

I am having a problem saving my work through a portal I am using for work on Firefox.

While trying to fix this problem, I went to Firefox Settings and noticed the following hyperlinked text: "Your browser is being managed by your organization." This is my personal computer, so I don't know what organization it may be referring to.

Clicking on it brings me to a new tab called "Enterprise Policies". In that tab is a list called "Active" with two columns: Policy Name and Policy Value. The only item listed is "DisableAppUpdate" with the value "true". This may be the cause of my original problem, but in any case, I want to be able to run updates!

I am using Firefox 137.0.1 (64-bit) on a Pop_OS system.

How do I turn off "DisableAppUpdate" and run updates?

windows 10 is up to date firefox is up to date (137.02 64 bit) dark theme

there is no bookmark sidebar button at the right of the address bar

I am running firefox in 5 windows with at least 7 tabs each every time i exit, reopen of update it i have more that 35 Bookmark LEFT Side Bars to close IF i have the patience to close all of them WHICH NEVER HAPPENS... (this is happening since too long, I am pissed off...)

I searched, tried a couple of "solutions" to no avail

Firefox Containers > Manage Containers > Remove [container]; message (modal, I think it's called?) pops up to say I have a tab open and do I want to proceed? I to up to the container icon upper-right, search for [container], click to open that page, then CTRL+W to close it. Then I try to Remove [container] again; fails. That container is still in the list, and still popping up a note that a tab is open in that container (no, I closed it).

I really like the Containers feature, AND it could use some improvement.

Unrelated, I'm open to help with proofreading; feel free to ask, or point me to a git where I could contribute. I'm not happy about the apparent erosion of privacy in Firefox, but it sure beats Google, Microsoft, Apple, etc.

Secure Connection Failed

The connection to the server was reset while the page was loading.

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Since the last update, I believe, because this error occurs constantly and with EVERY video. This is often, not always, the case immediately after updating FF. Now it was fine for a while, but now it's so bad that I'm having trouble watching YT videos properly. Reason: Browser open, logged in to YT. I click on a video to play - video opens, plays maybe 10 to 20 seconds, then playback stops spinning top, I also found out during the last glitch after update that if I switch the resolution briefly, higher or lower doesn't matter - important is to leave the current resolution and switch to another one. And oh wonder - immediately, instantly with the change, the video starts playing. If I wait for this - without doing anything myself, it sometimes takes 30 - 40 seconds for the video to start ... sometimes it just "hangs" ... This is extremely annoying - if it doesn't work, I have to switch browsers... What is also extremely annoying is that it occurs almost regularly after an update ... until the next one possibly, for unknown reasons, does not fix the error, but sometimes mitigates it. Now, however, the disruption/interruption is so massive and totally annoying that I'm thinking of switching. I'm just tired of it ...

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Since the last update, I believe, because this error occurs constantly and with EVERY video. This is often, not always, the case immediately after updating FF. it was fine for a while, but now it's so bad that I'm having trouble watching YT videos properly. Reason: Browser open, logged in to YT. I click on a video to play - video opens, plays maybe 10 to 20 seconds, then playback stops spinning gyro, I also found out during the last glitch after update that if I switch the resolution briefly, higher or lower doesn't matter - important is to leave the current resolution and switch to another one. And oh wonder - immediately, instantly with the change, the video starts playing (for a while at least maybe 5 Minutes maybe 30 Sek... i´m done with FireFox ...) If I wait for this - without doing anything myself, it sometimes takes 30 - 40 seconds for the video to start ... sometimes it just “hangs” ... This is extremely annoying - if it doesn't work, I have to switch browsers... What also bothers me extremely is that it occurs almost regularly after an update ... until the next one possibly, for unknown reasons, does not fix the error, but sometimes mitigates it. Now, however, the disruption/interruption is so massive and totally annoying that I'm thinking of changing. I'm just tired of it ... Please fix it or shoot me ... any suggestions ??

Seems I've noticed an issue with playing of YouTube videos the last few days. It seems that either the video(s) is slower to load and/or is slower to play. While it's not terribly slower in human time it's slower than normal in computer time. I'm not having this problem in Chrome. Cookies and cache are cleaned multiple times a day. So, I'm a little stumped as to why I'm having this issue. Any comments would be appreciated. Thanks

Some of my bookmarks are gone AGAIN. This time adding .old to files and deleting others did not fix the problem, nor has restarting firefox. I can see that sites have blue stars, indicating that they are saved into bookmarks (such as "weather") that I can no longer see in my bookmarks menu. Trying to recover bookmarks does not work. I can see recent dates of bookmarks. I can see old firefox data on my desktop.

Bookmarks are a basic function of browsers. This is RIDICULOUS. Please fix this issue.

I have not had ANY UPDATES to my computer since yesterday. Yesterday all my bookmarks were there!

I prefer Firefox to Microsoft Edge - but when I click Read more to continue reading an article in the same page I am on - it opens a new blank tab. then I have to go back to where I wanted to read more - and it is there. But why is it opening a blank page first? i tried changing settings but there is no "Open link in target" - there is just an option to open a new window or tab - when all I want to do is see the rest of the article. it works fine in MS Edge - but as i said, I prefer FireFox. is there a way to fix this?

Dear Mozilla Geeks—

As practically every other Firefox user, my bookmarks evolved into a lengthy file system that uses folders to segregate categories of bookmarks.

That is, it used to have this feature.

After the last update all or most of the bookmarks (I can't tell by scrolling down the long list) are devoid of their organizing folders. This puts a great deal of information beyond easy reach. In Mozilla Help topics one is advised to click on the library icon in the toolbar ... only there is no such icon on my copy of Developer's Edition.

Can someone suggest a method or methods to recover the folders?

Some passwords have been lost as well.

Yours Sincerely,

Glen

Today was the second time in two weeks I have lost every open tab in Firefox. Previous to this, this problem has not occurred in at least 5 years. What is going on? To utilize data from multiple sites takes a long time to relocate sites and this is becoming unacceptable. Firefox updates are better than this. Thank you for your help.

WHEN I SIGN INTO MY OUTLOOK ACCOUNT, FIREFOX IS BLOCKING MY CONNECTION. IT WILL NOT CONNECT TO SECURESERVER.NET. I CANNOT ACCESS MY E-MAILS IN FIREFOX CURRENTLY. PLEASE HELP! ALL THE TECH PEOPLE SAID IT IS THE BROWSER????

I AM HAVING THE PROBLEM ON THE OTHER COMPUTER. I THINK THIS PC IS O.K.

When searching on the internet, after entering the search name and hitting enter. The search results are on a Yahoo search page. I can't find any malware, extension, add-on that is associated with Yahoo. I did see a log that was in red that was associated with a website I attempted to convert a png file to a ico file. However, after downloading the software it was for converting PDF's to images. so I uninstalled it. it was after that Yahoo showed up. That log in web history was associated with the software.