Diễn đàn hỗ trợ Firefox

The same thing happens on my two Dell laptops (Inspiron and Latitude), and a Hyper-V VM (on my desktop PC). They all run Bazzite Linux 6.17.7-ba25.fc43.x86_64.

A video may play for a second or two, and then it's either a black screen, or an error message of "The content doesn't seem to be working."

On the same two laptops and VM, the Chromium Browser, and LibreWolf (a fork of Firefox?), have no issues playing the same videos.

Firefox version on all three systems is 147.0.3.

Any help/guidance welcome with thanks.

I have an issue where Confluence stops working after a while.

The issues are as follows:

• Opening a link will work and show the page.
• After about 5 seconds, the page will turn black.
• Using the search bar does not work, no results show.
• Trying to expand items in the sidebar does not work.
• Clicking on a link in the sidebar does work, but it too will turn black after the same 5 second delay.
• You can't edit pages.

I have found two ways to temporarily fix the issue.

• Clear the cookies for Atlassian.net.
• Go into the inspector, switch to the Network tab, tick "Disable Cache" and reload the page.

Unfortunately, this only fixes it for a week or two until it comes back.

This is not specific to any one Confluence instance. Once one stops loading, all (that we have tried) stop loading.

Installing firefox on my new device: Not all of my bookmarks are uploading from firefox on my other device.

It uploads a really old version of the tool bar even tough it shows in the HTML folder I am importing from my other device that the updated links are in the tool bar category.

I was using Firefox just fine during the day. My laptop switched off with Firefox still open (was simply doing sth else). When I switched my laptop back on and opened Firefox I was signed out of my account. When I signed back in all my profiles and bookmarks were gone. Is there anyway to fix this issue?

Hi

I have tried to launch Firefox a number of times today and every time it has frozen and does not respond. When trying to select the option of opening the software in Troubleshoot mode, once again the software freezes and I am unable to open the software in Troubleshoot mode . I have tried shutting and re-opening both the software and my laptop but this does not resolve the issue. Can you please either resolve the issue of the software freezing or tell me how I can resolve the issue.

I have updated today 2-7-2026 Read Aloud on Windows 11. It said I needed to allow permissions on 3 things. 2 of those things on the same page had slider controls for permission which I turned on. The 3rd thing is not present. It is supertonic.ttstool.com

I want to make sure my new update to Read Aloud will continue to work well. I have low vision and use this add-on a lot.

I'd like to know how to check that Read Aloud has the permission it needs for supertonic.ttstool.com

I can't pull up the original screen or I'd tell you what the other two were. One I think had to do with permission while navigating.

Thanks.

bold textI do not remember ever having a Mozilla master password. Because I do not remember having a master password I do not have a recovery key. How can I find these if they do in fact exist/

I set up my new tab (after the Home page which was Google News for my profile) to show shortcuts in four rows. Clicking on these shortcuts opened the URL for an account or webpage. I "pinned" or "dismissed' these shortcuts over time. Somehow, I lost every shortcut and cannot seem to figure out how to recreate this.

Hi everyone,

I’ve been using Firefox as my primary browser and overall it works great, but I’ve noticed a slowdown pattern during longer sessions and wanted to compare notes with the community.

After running the browser for several hours with many tabs open, I sometimes see delayed responses when switching tabs, typing in text fields, or opening menus. Nothing crashes, but the interface feels heavier until I restart the browser. Once restarted, performance goes back to normal.

I’ve already tried reviewing extensions, disabling a few that I don’t use often, and checking memory usage in about:performance. The numbers go up as expected with more tabs, but I’m not sure how to judge what is considered normal versus problematic.

Because the issue improves after restart, I’m wondering whether this is typical resource buildup, session handling, or something specific I should be tuning.

How do experienced users usually approach diagnosing gradual slowdowns like this? Are there particular indicators in the built-in tools that suggest a real problem rather than expected behavior?

While reading more about how browsers manage memory over time, I found this general explanation helpful for understanding the bigger picture:

I am hoping that a permanent fix can be made to the bookmarks toolbar issue where another program may be using a file that allows it to show at the top of my screen. It keeps disappearing and I complete a fix and it disappears later in the week. Thanks Brian

I am unable to log into RBS site on Firefox but I can on Chrome and Edge. What's the problem and how do I fix it? This has only happened in the last couple of days.