Diễn đàn hỗ trợ Firefox

Hi, since the latet update thi week (20 november) my F1TV doesnt work anymore via https://f1tv.formula1.com/.

It states : Unsupported Browser

This browser is currently unsupported. To experience F1 TV, please switch to an alternative browser. Please see our FAQs for more information

Pleae help as this weekend is La Vega F1. Thank! Erik.

Mozillers,

I depend heavily in my environmental and other work on Firefox and am grateful for its ability to restore previous tabs when my laptop, not infrequently, stops working abruptly.

Now the much-used bookmarks have disappeared. A search site states promisingly:

"To restore Firefox bookmarks, use the built-in backup feature by going to Menu > Bookmarks > Manage Bookmarks > Import & Backup > Restore, then select a dated backup or a manual file (like a JSON backup) to bring back lost bookmarks..."

But my Firefox's Bookmarks drop-down menu has no Manage Bookmarks option. PLEASE, what must I do?

Elsewhere I managed to find this file which apparently contains recent bookmarks:

"C:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\unk14jlv.default-release-1647366062305\bookmarkbackups\bookmarks-2025-12-26_95_4IdGtYxezJpwuH1UIiT1bRwe1K6bcGO8rv0mqa9rUWU=.jsonlz4"

But attempting to open it with Applications\firefox.exe (default) accomplishes nothing.

FOOL-proof instructions would be wonderful. Thank you.

For months I've been trying to clear my saved form data as I put in the wrong email address, and when using saved form data sometimes don't notice it's wrong, so replies disappear into the ether.

Under Settings/Privacy & Security/Clear browsing data I have cleared Everything with all check boxes checked, and multiple times just tried the Saved form info checkbox. The wrong email refuses to die along with the related form data.

It is infuriating. Maybe you can correct it manually, or actually wipe it for me? The INCORRECT email is 'bongoots@yahoo.co.uk'. The CORRECT email is 'bongboots@yahoo.co.uk'.

Many thanks, Bruce Clarke

Youtube does not work. It shows somekind of default page that is essentially blank. It does say: "Try searching to get started" and "Start watching videos to help us build a feed of videos you'll love."

But it will not respond when I attempt to search anything.

My Bookmarks are missing. I see backups under the profile/bookmarkbackups folder but when I manage bookmarks, they are not in the restore dropdown. I have followed the steps to delete the places.sqlite but when I reopen firefox, I do not see the bookmarks have been restored. I thought it might have been related to Norton Utilities so I renewed a subscription but no luck. I also have a json file with my bookmarks but I cannot choose it from Manage Bookmarks, either

I deleted all the shortcuts from Firefox desktop browser's homepage and now I cannot add them back.

There are no blank shortcut icons on the page anymore. No setting to enable them. Shortcuts are enabled. Page is mostly blank, only has Firefox icon.

I tried to close and open Firefox as well as disabling and enabling the shortcut setting. Adding more rows did not do anything.

Before this issue occurred, I had one shortcut on the page that was linking to localhost. I opened the edit window to the shortcut and pasted the same address and saved changes. After that I removed the shortcut. All of the blank tiles immediately got removed from page and I had no way of adding more shortcuts.

Something's wrong with my Tumblr. When Firefox crashed before it updated, my Tumblr has completely broke (It won't show any notifcations that someone posted, the activity is stuck at 2 and community at 6). PLEASE HELP

This is the message I get when I try to access my Bookmarks: "The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem." I have already tried to find out from Microsoft if their latest reinstallation of Office Professional could have caused the problem. They say they have nothing to do with Firefox. How can I get my Bookmarks and History back?

Hi, Since the last update for Mozilla on the laptop (updated on 6/Oct/2025 - version 143.0.4 (64-bit)), all the shortcuts to websites in Firefox homepage I had pinned have disappeared. Also I can't add new shortcuts. I already have shortcuts enabled in Settings>Home>Firefox Home Content>Shortcuts.

Does anyone know how to solve this?

Kind regards.

Bárbara O.

Several times now I've closed firefox while having the open previous windows and tabs on startup on only for all my tabs to have been closed (with this time in particular being annoying due to losing tabs that I needed to have the specific link for). Is there any way to restore tabs lost in this way?

I am here to complain about the recent additions of ai. I use this browser because it is one of, if not the only, browser to not use ai. Fuck off with that if you think anyone who switched to firefox to avoid all the ai bullshit wont just do the same and leave. If ever my only option to use the internet in any capasity was to use an ai run browser, then I'm fucking off the internet forever and going caveman. Porn, fanfiction, and video games have been my only reason for not saying fuck this and going to live in the woods and eat dirt and shit naked in the rain for years now, don't be my last straw.

After the last Firefox update (146.0), my bookmarks bar only shows thumbnail images. The descriptive text which was previously black text on white back ground now appears to be white text on white background. (Whether my system is set to light theme or dark theme.) This happens on all of my Windows computers (both 10 and 11). How do I resolve this problem?

Hello. I did not receive an answer to my last help request. A Block Ad does not allow me to access this site: https://www.tempo.pt/lisboa.htm?utm_source=newsletter&utm_medium=email#-0eebc5457c97ef8bca0b518ed4194951 I need some help, please. This is a site informing me about the weather. Thank you.