Firefox Support Forum

I have tried searching all self help topics. I have tried all available settings options. I have upgraded to the latest version 104.0.2. However, nothing seems to fix my problem which is that Firefox will not restore my previously open tabs when I reopen it. This problem started a few weeks ago. I have selected [Open previous windows and tabs] I have selected [Firefox will remember History]

Can you please help

Thanks Fred

By mistake, I close a window with lots of opened tabs and can not get them back. In the past when this happened I went to history but now there's no available option in "recently closed windows".

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?

Firefox unexpectedly closed on me and when I opened it up again it did not immediately give me the option to restore closed tabs. So I went to the menu to click on restore closed tabs there but the option was not provided to click on. How do I restore tabs under this scenario? Thanks.

I am using Windows 11 on a new HP laptop. I had the same issue on my old HP laptop with Windows 10. Sometimes, I cannot ctrl-click on a link and open it in a new tab. It always opens in the same tab. I know there are html links and javascript links. Is it possible that the person designing the page makes it not possible to open in a new tab?

This is the first time, that an update lost all of my tabs. Is there a way to access previous sessions, other than the most recent one? I would like to access a session from last week, and see if I can get my tabs back. I'm very unhappy about this and I've not been able to restore my tabs. The current tabs are place holders, and they do the reflect what I had before the update.

The option to restore tabs and windows is no longer working for me. I normally have a dozen tabs I work thru every day. Yesterday when I shutdown Firefox, all those tabs were there. Today when I open Firefox it only had to single Firefox default homepage. Checking under History there is no option to restore previous tabs, and the recently closed tabs was empty.

To test, I opened an IMDB page and pinned it. I then went to Wikipedia. This gave me a pinned and unpinned tab. I shutdown Firefox via the "X" to close the window. When I restarted Firefox there was only the default homepage. Neither IMDB nor Wikipedia showed up under recently closed tabs and no option to restore the previous session was available.

I have operated Firefox this way for several years. I don't know why this behavior is no longer being supported.

tried searching for this but unfortunately i didn't find any relevant posts

trying to set the sidebar width using the 'userChrome.css' file

the css file path is;

C:\Users\username\AppData\Roaming\Mozilla\Firefox\Profiles\bjf0cg2g.default-release\chrome\

userChrome.css

the css is;

1. sidebar { min-width:34px !important; max-width:34x !important; }

appreciate any feedback because there seems to be an issue with the above

I've been searching for a way to hide the tab bar and reclaim that space. Some sources on the web set to change some settings in about:config and edit userChrome.css, but this did not work. This question links to an add-on to do it, but the link is broken:

https://support.mozilla.org/en-US/questions/1331617

When you open a web site, a tab is created up top under the "File," "Edit," "View," etc. tabs. And, obviously, if you have more then one site open, they're all there. But this week I noticed that with the fourth tab, they stop being visible, and there's arrows on the far left and right. So if you have five or six pages open and you want to go back to the first tab/web site, you have to hit the arrow on the far left to make that tab visible, and then click on the tab.

So they went from one step/click to two, or three, or four! Sometimes I have to click around to find the tab I want. Also, there's times I just want to see if a site/tab is there. Now, I have to click the darn arrow and find it!

Why do they do this? If it aint broke, don't fix it!

I don't want it like this. At all. I want all the tabs there, without any arrows. Just like it always was. How do I get it back to what it was?

I have been using Simple Tab Groups (STG) for a long time now. I am curious if putting tabs into groups saves any resources, i.e. is only the open group using resources (CUP/RAM), or is STG purely organizational in that all the tabs still use the same amount of resources as if they weren't grouped? If it is the latter, do you know of an add-on that would save resources? Thanks

I've been using multi-account containers for a long time. I've always used 'ctrl + shift + # of container' to open new tabs in a specific container. Recently, that feature has stopped working - but only for some containers? I can still open containers 1 and 2 using that shortcut, but my other containers just don't respond.

I've tried deleting the unresponsive containers and creating new ones, but that doesn't fix the problem. They work great otherwise - I can still open them with my mouse. Is there a fix for this?

Hello, for my study I'm searching a lot of information on different websites for different school subjects and have currently accumulated over 1000 tabs open/active in my Firefox (web) on my laptop. I usually open websites and don't close them with the assumption and just to be on the safe side I might need them later. However, I would like to group/bundle these tabs into different categories according to the subjects I'm working to keep it manageable. Is this possible (preferably not by means of an add-on)?

I've had Firefox since it's been around and not had this issue, I have a Mac with OS Monterey 12.6. Firefox is up to date and about two weeks ago with about 10 tabs open a tab crashed which probably hasn't happened in a couple years. I tried re-opening but it just crashed. I clicked the next and it crashed, then to the next and it crashed, etc. They all crashed soon as you clicked on them. I switched over to Chrome to see if I could even look something up because as soon as you clicked on anything with Firefox it crashed. I restarted Firefox and tabs just crashed. I let it sit and came back 8 hours later & all worked fine. A day later tabs started crashing again. On and off for the last two weeks tabs just keep crashing intermittently on Firefox and they only way to fix it is take a break and come back in an hour+. Then maybe a tab will crash and it will continue to work for a little while when you restart tab or maybe it will just crash as fast as you click Restart Tab. I currently have 2 crashed tabs and I'm surprised its letting my type this with a crashed tab, when I tried opening another, it just opened a crashed tab. I wouldn't doubt if it crashes in the middle of typing and I have to come back in an hour to finish. I can't find a solution on Google and if this keeps up, I'm going to have to drop Firefox as this happens throughout the day for work. Any Ideas what this might be? If you think it's a computer issue, I'll call Apple, but no solutions on Google make sense. Thanks for any help.

Note, these tabs are crashing on every site you can think of from Yahoo, Mail, Google, Facebook, Amazon, youtube, etc.

Last October my sessions were gone after a Firefox Update. I asked for help here: https://support.mozilla.org/sv/questions/1394685 and eventually got kind help from @cor-el (that unfortunately wasn't skilled enough to understand) and from @RayGibson57. But by then, my life was in a flurry and I didn't have time to try the advice. And so, after a while I had, with some effort, gathered many of the old tabs back again, and built up new sessions.

This Monday I was trying to internet while having high fever (something people should never do :o ). I left three blank windows open when I shut down the computer, and next morning those three were the only ones Firefox wanted to remember.

(I still find this change frustrating, bordering on infuriating: what happened to "Choose how many old sessions you want Firefox to remember", I think the maximum was ten?)

Now the fevers left and I went to those answers to try. That Q/A was archived though, so I'm starting again here, from as far as I got following King Rays instructions. They were:

1. Open the application menu (3 horizontal lines) next to the address bar.
2. Click on Help -> More troubleshooting information.
3. With that page open, find Profile Folder and click on Open Folder. That's how you get to the folder with backup files in it.
4. Set computer up to see all the extensions & system files. By default, the extensions don't show up (.jsonlz4 is an extension).
5. I found an older file in that sessionstore-backups folder and copied it one level back to the main profile folder.
6. Renamed the sessionstore.jsonlz4 to sessionstore.jsonlz4.old and the file I copied, I renamed to sessionstore.jsonlz4.
7. Opened Firefox and that missing window was in the history so I could open it.
8. Don't make any typos here, because Firefox won't find the files it needs to open.

I got as far as finding the Profile folder and the sessionstore-backups folder.

But I cant find any jsonlz4 file called "sessionstore". Only a "sessionsCheckpoints" and that one is a json file, and the date modified is today.

See screenshots please!

Can anyone talk me trough this like Im a grandmother from Sweden with extremely limited coding & tech skills (which is what I am)?

An old question but seems like the about:config parameters have changed recently. the following don't exist anymore : toolkit.cosmeticAnimations.enabled ui.prefersReducedMotion

I've searched with other keywords but couldn't find the new one.

Since one of the last updates the behaviour for the tab re-sizing got messed up.

When there are only a few tabs with full size, those as well as the additional plus icon is shown. But when there are more tabs and they are re-sized, then the right side gets cut off. First the new tab icon dissapears and then also the last tab get's cut off.

I attached a screenshot with three firefox browser windows showing the problem, as well as a forth one with only 3 tabs open, which are shown in full size including the new tab icon.

This is a new problem as the tab resizinng and the new tab icon used to work perfectly fine no matter how many tabs were opened.