Diễn đàn hỗ trợ Firefox

Current firefox version: 155.0

Since the last few updates, update frequency of title bar of inactive tabs slows down over time. Sometimes there is important info in title bar that should be updated frequently. Are there any flags in about:config that can be reverted to achieve that?

the build in VPN is not working anymore: the messages we get are often like "no internet connection". i did use it now for some weeks, but after the last update it stopped working now for some days.

I mostly watch YouTube channels on Firefox on my laptop, but recently have had to change over to Microsoft Edge browser to watch YouTube. The reason is that during a channel stream, when an ad wants to play, YouTube and Firefox freeze and the only way to exit the screen is to either attempt to close YouTube or even open Task Manager to shut down all instances of the Firefox software. Firefox is by far my preferred browser and I'm frustrated that it is unusable in its current state. I tried to uninstall and reinstall, but this did not work. Thank you in advance for your help.

Graham Caveill

This shield on the search bar is making firefox on win11 unusable for me. I set browser.urlbar.trustPanel.featureGate = false but it still displays. Why do they keep making these changes, it seems like every month there is a new change requiring setting changes,

I had problem with a certain website, did trouble shooting mode and refreshed FireFox. Website works now but I keep seeing this when FIreFox starts. I set FireFox starts with default Firefox Home. Any suggestion how to correct this nuisance?

What can Firefox change so I can log into aarp.org or when I read an email open the article up from the AARP page. I continue to get error 15

When Firefox is running in a non-maximized window, an unwanted empty space appears on the left side of the tab bar, before the first tab.

This space is not present when the Firefox window is maximized. It appears automatically whenever the window is restored to a smaller/non-maximized size.

The issue affects the tab bar layout and leaves a noticeable unused area on the left side of the tabs. I would like to know whether this is expected behavior or a UI bug.

Firefox version: 155.0 64-bit Operating system: WINDOWS 11 25H2 64-bit

A few updates ago, headers and footers started appearing on anything I print from Firefox. No other printing from any other source does this. All the settings (advanced settings) show header/footer as off, and 'none' in all the header footer options. I have attempted every combination available and can't get rid of the headers and footers. I Don't Want Them!

Добрый день. После последнего обновления Firefox появилась проблема. Суть такая, При перетягивании вклдаки с одного окна Firefox на другое они не объеденяются. А переносится как новое окно. А в окне в которе переносится появляется синяя полоса и висит так бесконечно. Еще вчера, до того как я обновил до последней версии все работало нормально. Помогите решить проблему.

Google translate: Hello. I've encountered a problem after the latest Firefox update. When I drag tabs from one Firefox window to another, they don't merge. Instead, they move as a new window. A blue bar appears in the window being moved, and it hangs there forever. Everything was working fine yesterday, before I updated to the latest version. Please help me solve this.

I hit the "Clear Private Session" icon, confirm, but then I have to go to:

Open Settings >

Privacy and Security >

Browsing Data >

Clear Browsing Data >

"Everything" (every check box has to be checked) >

Clear.

I have Firefox in permanent Private Browsing only, and Privacy and Security Settings are set to Strict / Do Not Fix any site problems.

Why does Firefox retain browsing site data even after I exit out of Fiirefox completely unles I do all of the above?

I have the latest version of Mozilla Firefox 155.0.Every time i update to latest version my Norton 360 for Gamers antivirus Safe Web application blocks the update process and i report it as False Positive and Mozilla Firefox updates ok. I have attached and image of Norton's Safe Web application analysis. Also,have submitted this issue to Norton using their Report False Positive form and have not had a reply yet. Thank you

I work for a school district. At some point over the summer, a Firefox update started triggering my districts web filters. The filter says it's connected to Firefox VPN, but I don't have the VPN turned on. After a minute or two, I am able to access the internet normally in Firefox or any other browser.

There must be a setting or something in Firefox that triggers this since I can use any other browser normally, but once I open Firefox, everything on my computer is blocked from internet connectivity until the timeout is over.

Only with Deepl, I click on this program and immediately I get a window which says "Checking if the connection is secure". Underneath this, I have to check a box which says "Verify if you are human", with the Cloudflare logo.

I've tried everything to get rid of this as it slows me up. I've tried Settings/Installed Apps, Search, Programs etc but it is not contained in any of these lists. I contacted Cloudflare who gave me some suggestions which didn't work (can't remember them), then said it was part of Mozilla and it was them that have attached this window so I need to contact you to get rid of it.

Can you help me please?

I have a new Windows 11 lap top and have been trying to make Firefox work the same as on my Windows 10 laptop. I looked at "Bookmarks import doesn't show bookmarks on title bar? " and tried to follow the instructions. The result is that the bookmarks toolbar contains both "Import bookmarks" and "Bookmarks menu" but not the actual Bookmarks Toolbar titles. The Library shows:

   *All Bookmarks                   (The asterisk is bold inside a square)
         Bookmarks Toolbar
         Bookmarks Menu
               Mozilla Firefox        (Get Help}
               Mozilla Firefox        (Help and Tutorials)
               Mozilla Firefox        (Help and Tutorials)
               Bookmarks Toolbar
                    Finance
                    Trade
                      (et al)
         Bookmarks Toolbar
              Finance
              Trade
                 (et al)
   $Bookmarks Menu            ($ is actually a menu emoji)
         Mozilla Firefox              (Get Help}
         Mozilla Firefox              (Help and Tutorials)
         Mozilla Firefox              (Help and Tutorials)
         Bookmarks Toolbar
              Finance
              Trade
                (et al)
   %Other Bookmarks           (% is actually folder emoji)

As you can see, I am going round in circles. I do not understand properly how bookmarks work. On my old Winows 10 laptop, I managed by trial and error to get something that I could use, but now I am mostly getting error.

From Firefox, I have launched Earthlink Web Mail. When reading an email, scrolling doesn't work. It worked yesterday from firefox. It works today on Edge. It works today on my Android phone.

Now when I click on something in Firefox, for example a Facebook post, it opens in full-screen mode, not just in the selected window size. When the new window opens in full screen, it covers other stuff already on the desktop. It's f'ing annoying. How do I choose to have new windows open at the existing window size?

I am using the latest 155.0 build of Firefox on Windows

Edition Windows 11 Pro Version 25H2 Installed on 21-08-2026 OS build 26200.9278 Experience Windows Feature Experience Pack 1000.26100.360.0

Recently, probably around a few weeks ago, I have found that i am no longer able to reorder tabs using the mouse left click and drag to reorder.

The mouse is working fine and I am able to do the same reorder on the Chrome browser however it doesnt work on Firefox anymore.

The only way to reorder tabs is to use the popup menu and select Move Tab.

Kindly fix

Regards Sanjay