Diễn đàn hỗ trợ Firefox

Many, many months ago I did mundane search and opened a webpage in a new tab, as per normal. Nothing particularly stood out about this search and when I was done, I closed the tab. I didn't do anything different. I didn't save a bookmark or change any settings. I just looked at the webpage and then closed it when I was done. (It was a web article on some random tech site, if that matters)

Anyway, now whenever I open up my Firefox browser there seems to be a random chance that this previously closed tab will open on loading. And when I say random chance, I'd say about 1 in 5 chance. It doesn't always happen.

Just to be clear: I do have the browser set to restore my previous sessions. This is a setting I want to have on. However, this tab was not part of my previous session as I specifically closed it - and continue to close it every time it opens itself. Also, my Homepage is set to default and nothing else.

Not only that, but there are two very peculiar details about this case that make it very, very strange: 1. When I originally opened (and closed) this tab, I was using normal Firefox. I have since switched to Firefox Nightly. All of my other tabs that I like to keep open had to be searched and loaded up manually, one by one, after I did the switch. This one tab, however, is just showing up on its own. 2. Opening Firefox on a separate devices (second desktop PC, laptop, android phone) will occasionally load up this tab.

I do have my browsers set to sync, which is what I'm assuming is why it's following me around. But I don't understand why nor how to stop this specific page from loading after I keep closing it time and time again. Plus, why aren't any of my old tabs from my old Firefox browser following this same behavior after moving to Nightly? - I've closed hundreds, if not thousands of tabs. Why is this one following me around?

I have the most recent update and have been excited about tab groups, but it's still not working on mine. I thought the update would be available to all as of May 6, 2025. Is this happening to anyone else?

Hello, I closed my browser, expecting it to save my current tabs as it usually does. When I reopened it, the tabs were gone. They were important for me, and some of them were pretty old so I can't find them in my history. I tried checking the "recently closed tabs" option, it didn't help. There was also no option to restore the previous session. Can you help me restore my lost tabs?

several weeks ago, i noticed that my tabs that i have had open for months no longer were present when i had occasion to reopen firefox after i had shutdown computer. i think it happened after update 98.0.2 was installed. i have searched help, etc. one solution that was my exact problem did not apply to me because the screenshots the contributor was using were not present on my version of the browser (or it is always possible that i was lost). this issue is a pain and i sure would appreciate any help thanks, Steve

"Container Tabs" are unavailable in Firefox on my employer's corporate PC. The "Enable Container Tabs" option is missing in the Tab section in Settings. There is a notification "Your browser is being managed by your organization." Thus, the lack of container tabs may be due to corporate policy. However, I don't see anything on the Active Policies page except one irrelevant record: "InstallAddonsPermission Default false." Additionally, "Container Tabs" are unavailable only in Firefox. Nightly has them. But, Nightly is not officially supported by my company. I have tested several corporate PC and different versions of Firefox and Nightly. Is it a weird Firefox bug or something else?

Hello, sadly I have the problem since a few days that firefox opens a new tab with the same error every time I google something or click on a new page/subpage etc. The URL on the error page is all the time "https://0.0.0.1/" mentention of course a page loading error. I don't know why firefox keeps oppening new tabs with this URL. I allrady tried to use the clearing function and even reinstalled the software, nothing worked. Maybe somebody can help me solving this problem, it is very annoying to have multiple new error-tabs per minute in a normal work flow. Thanks and best regards, Thomas

Hi

Trying to make sync work the way I want. Initial question:

I've synced tabs between Windows desktop and Android. Now I would like to bookmark all those tabs in the desktop browser, without opening them first. I've found out how to view them in the side bar, but I see no option to bookmark all tabs.

It would be nice to have synced Tabs in the Library window and Options panel.

Please, I want my tab's x back no matter how many tabs are open. My monitor is very large so I can see. Looking for close tab after right click, is a problem for my eyes as I have to get up close to my monitor and then it takes too long to find the close tab. Just a few hours ago, the x disappeared, even on the tab I had open, and I didn't have as many tabs open as I usually do.

I did some looking and i found that you had changed it a long time ago but it only just affected me now (my (computer is not even a year old), even my laptop had the x on each tab (although I haven't used it in two weeks). I rely on the tab's x, especially the tab that I have open, no matter how many tabs, there is no x anymore at all, unless i have fewer than seven tabs open on my 27 monitor. I even changed the minimum tab size without result. No x on the tabs, no x on the tab I'm using. Thank you for your time spent reading this old woman's rant, i'm sorry for the bother. I would appreciate your help. Thank you, v.l.duff ginduf@gmail.com

I don't know if it is because i closed firefox task end, or if it is a bug from update to v119 (when i reopened firefox, there was the updated tab). But now when i fly my pointer on "recently closed tab", instead of only having the 15 last closed tab of my current firefox windows, i have also the 15 of each opened firefox windows. means if i have 2 page it show 30 tabs, etc. the first 15 being the tab of the current windows (ex: FF windows 1) and the 15 next for the other opened one (FF windows 2), when i check "recently closed tab" on the other windows it is reversed (the 15 first tab are the windows 2 closed ones, and the 15 next from the windows 1). It is me, or a global bug (or new feature). If the second, how to return to the former option (means having only the tab closed from the current windows showing)

I had something like 7 windows open 10 minutes ago (yes I am a tab hoarder). I was trying to run a game that used a lot of RAM, so I decided that I would close ALL of my firefox tabs in hope that the game would run smoother with the 5gb that Firefox was using. I didn't think anything of losing the tabs because I had accidentally closed windows in the past using the big red 'x', and an easy ctrl + shift + t always restored the entire window no problem. When I tried to open firefox again within the next 5 minutes, only 3 of the windows restored themselves, I assume using the general > startup > open previous windows and tabs setting. Using Ctrl + Shift + T did nothing to restore them. Please help, as the windows that did reopen were the ones that I cared the least about.

I use the Feedbro-Addon, which creates an own tab. Its url is: moz-extension://285d678c-ecb3-4003-923d-835fc9d8e0bc/reader.html

If I use it as a normal tab (instead of a pinned tab) ... it survives a Firefox restart. But if I use it as a pinned tab (which I want) ... it disappears after a Firefox restart.

I suppose it has to do with it being an addon-page instead of a "normal" page.

Is there a way to make it stay permanently pinned?

Hello. I love the feature. I didn't know it was a new feature because I started using Firefox around April. I saved my group tabs, very happy about it. Then I close and save it, then I opened it again, it was great!

I am a student, I use my group tab to add the tabs that have the resources that I need to, and would also like to study for more knowledge and for my next school year.

There was no problem at that whole time. In April 21, there was no problem until April 22, 23 no problem. But I forgot my charger at that time, because I was at my mothers house. Then I wait for weeks for my charger to come back, about 2 weeks for my laptop to revive there in my grandparent's house.

When I got my charger, and opened firefox. Wait, but at first when I opened firefox, it showed me that there is a new update, an update about tab groups that I already now. I looked at my group tabs, and they are not there anymore.

What should I do to get them back.

Hello, When i create a new tab (cntrl + T) I can no longer just start typing and have that be a google search. Now I need to manually click in the search bar. Is there a way to enable it so creating a new tab automatically puts the text into the search bar field?

Not sure why this stopped working, maybe a recent update. Thanks for your help.

I recently updated to Firefox 138.0.1 to use the new tab groups feature, which allows grouping and labeling tabs, as outlined in Mozilla’s support article (expected for all users by May 6, 2025). However, after updating, I don’t see the tab groups option when dragging tabs or right-clicking them. Has anyone else faced this issue? Could it be due to the progressive rollout, a conflicting extension, or a setting I need to enable? I’ve tried restarting Firefox and checking the tab bar, but no luck. Any community solutions or workarounds to enable tab groups would be greatly appreciated! Please share your experiences or fixes.

I recently decided to try vertical tabs in Firefox, and can't find a way to search these tabs as I could when they were horizonal, with the downward pointing arrowhead. If this is a feature, please let me know how to add it to my sidebar, and if not, it would be great if this feature could be developed. Thanks!

How do I tell firefox's tab key not to go to links, only form fields. That is, if you go to https://visca.com/apac/dites/, hitting 'tab' should take you to the form field [Cerca], whereas now it scrolls through all the links first.

Thanks in advance, Lou

I had 2 windows open, closed one, lost all of my tabs. Restore didn't work. I tried to restore by renaming session-store-backups folder files. doesn't work. There is a file called upgrade.jsonlz4 from November, maybe that could be used to restore tabs somehow?

If I have many tabs open, and pull one away, instead of the previous tab saying in focus, it clicks to a different tab.

If I have 5 tabs open:

1. Tab1
2. Tab 2
3. Tab 3
4. Tab 4
5. Tab 5

I'm focused on Tab 3. If I pull Tab 5 away, it snaps me into Tab 4 even though I was previously on a different tab.

I think this isn't a bug but not desired?