Diễn đàn hỗ trợ Firefox

I have lost my tabs after the recent update. They used to show all tab groups in toolbar icon as mentioned here (https://support.mozilla.org/en-US/kb/tab-groups) in manage tabs section. Only the groups that were open are retained, the groups which were closed are lost. They contained important tabs which I haven't bookmarked. I didn't see any policy of removal of inactive tab groups after certain time, any help would be really appreciated. I use the desktop app on Linux.

How can I customize the headers and footers of a print job? Specifically, I want to change where the header and footer info appear on the page, i.e., left corner, center, right corner. I'm using Firefox Browser version 141.03. Under Print > Options, the only option is to show or not show the headers and footers. There is no option to EDIT them. Thank you.

Hello,

I’m experiencing an issue where I cannot use ChatGPT-5 in Firefox. When I log in and try to select or use GPT-5, nothing loads or functions properly. Other models like GPT-3.5 work normally, but GPT-5 does not respond.

I’ve already tried refreshing the page, clearing cache and cookies, and even disabling extensions — but the problem persists. Could this be a compatibility issue with Firefox? Any advice or support would be appreciated.

Thank you in advance for your help!

Hi, Today 8-7-25 Mozilla automatically upgraded to version 141.0.3. Now all of my bookmarks are gone. I can't find them on my pc. There are two profiles listed in the profile section. Neither seem to have my bookmarks. I have a lot of bookmarks and some are very needed. Please help me recover all of my bookmarks. Thank you, Geo

I am now receiving this notice for more and more commonly accessed websites. I get the message if I have https only selected or not selected. Currently receiving for Lowes, Home Depot, American Airlines and more. I can go to a Firefox 135.0.1 browser on a separate desktop accessing the internet through the same router and do not have issues. I suspect I have been upgraded by Mozilla into a less functional browser version for whatever reason that Mozilla does this.

Sample Messages:

American Airlines Access Denied You don't have permission to access "http://www.aa.com/" on this server.

Reference #18.ea382f17.1754673395.2abc2b02

https://errors.edgesuite.net/18.ea382f17.1754673395.2abc2b02

Lowes Access Denied You don't have permission to access "http://www.lowes.com/search?" on this server.

Reference #18.89f8cd17.1754677280.265017bc

https://errors.edgesuite.net/18.89f8cd17.1754677280.265017bc

Hello. I wanted to know whether it was possible to connect another browser data, as I usually use two browsers: Safari and Google Chrome. I added my data on safari when setting up Firefox, but I would like to add the data on chrome as well. Is there any way to do so?

I've had to replace my computer today and when I've installed Firefox and signed in it no longer shows than I paid for a year's Premium Relay in June this year. What to do?

Today I went to TikTok, was using it earlier in the day also, when it showed me logged out and when I go to log in using my email, a windows security pop up shows, saying that I should insert my security key into the USB, something I don't have, and that this is being asked because of Firefox, which I can click cancel, but when I try to sign in with my email, I can't seem to, the password doesn't seem to be working, and can't sign in with the QR code through the phone which connects with the app. Still signed in just fine on Chrome and the app on my phone, so not sure what is up, as that shows my password should be fine due to neither of those logging me out if my password had been changed.

That I changed one thing yesterday related to something "secure", was that I enabled SecureBoot in BIOS, because games like Battlefield require it now for the anti-cheat and I'm curious if this has somehow affected this in some way as that's the only thing that changed recently for me.