Firefox Support Forum

Dear Mozilla/Firefox,

I've been using Firefox over the last couple of months/years but I just can't get the restore recently closed tab shortcut (CTRL+SHIFT+T) to work on my windows PC.

Here's a (Loom) recording of me showing that Firefox does correctly track the history of closed tabs and that I can click on them to restore but the shortcut (which is also mentioned as CTRL+SHIFT+T) just won't work: https://www.loom.com/share/7048894683654dccb4926aa4dd09e6a6

What I've tried so far: - Check if the history is actively collected - No I'm not using private browsing - I've read another support thread to check "about:config" and in there check that "browser.sessionstore.max_tabs_undo" is set (in my case it's the default 25) - Disabling all extensions (which I don't think are any suspicious or weird ones but disabled just to check - see attached image) - Resetting Firefox through the windows uninstaller - Fully uninstalling (using Revo Uninstaller with advanced check) and reinstalling Firefox

Please help me because I'm about to quit Firefox for such often used feature just not working...

P.S. it's working perfectly on my Macbook and I'm running the latest 96.0.1 64bit version

My firefox browser says it is being managed by my organization " ImportEnterpriseRoots...true". I'm a home user...no organization. don't know what to do. I haven't noticed anything unusual happening. My browser is up to date.

Hi there

I've had firefox for years and never had much issues. I've never had this issue before the most recent update where now youtube videos constantly stutter. It's just Firefox as other browsers work fine. I've updated my graphics card and did a little bit of research but none of the fixes quite did it for me. In the past couple days I've always had Firefox crash on me twice, which hasn't happened before either. So I'm not sure what's going on, but I'm prone to point fingers at an update. I don't install extensions or themes, so the only extension I have really is uBlock Origin but that's been there forever. I've restarted my computer as well. It is not my resources, they are more than fine my RAM and CPU and Graphics Card. Task manager shows nothing is even above 50% (CPU, GPU, Memory) when playing the video. I've also tried creating a new profile and opening up a new profile. Same issue.

Can anyone suggest any fixes or is this a firefox update bug?

EDIT: This appears to be for all videos I am playing on Firefox. It also does not matter if I set it to the lowest quality, even 144p, it will still stutter nonstop.

Hello Whenever I start a download, it immediately crashes, no matter what you do all downloads fail. Tried solutions that didn't work:

• refresh ff,
• delete profiles,
• uninstall + reinstall.

I'm using Firefox 85.0.2 . . . I was doing this (below), to customize my header and footer, but in this version of FF, I no longer see this in Options - only in: about:config . . . keyword "footer" . . . there, I would have to change it for 5 different ways of printing (to printers or to PDF)

I need to get rid of printing the URL in the footer - many times, it's too long, and I don't need it.

Where did the Page Setup option go?

I see in the current Print Options, you have to go to - More Settings / Margin / Custom - to see those. Why would they put this so many levels down?

It used to be: File / Page Setup / Margins & Header/Footer . . . "Customize" Headers & Footers:

Option 1 (left) . . . there are two leading spaces:

 > > &T
 > > &U . . . &D . . . &PT

Option 2 (left) . . . get rid of the ">"s, and just have the two leading spaces:

 &T
 &U . . . &D . . . &PT

Hi, so my problem was exist for several times both on my PC and laptop and can't figure it out keyword to fix my issue and tbh i don't know what trigger this behavior. When browsing sometimes came situation can't type anything using my keyboard, even when outside firefox.

my current workaround to encounter this, i just need open any web with place I can type like search bar or text box and type there then back to normal (so I guessing it's maybe related to when I open web with this kind search box then move to other tab it's stuck on that box? but i can't make sure, it just happen randomly but often). and I don't know if this issues related to windows or just firefox because I didn't know the trigger so i can't recreate this on other browser.

If anyone know how to fix this, please help me.

thanks in advance

Hello, I am using a personal PC. So I don't require the Firefox to be managed by an organization. In settings it shows "Your browser is being managed by your organization" . On clicking on it, it says "The Enterprise Policies service is active but there are no policies enabled". I have attached screenshots for the same. Does any one know how to resolve this bug?

edit: fixed formatting cause by space before I am

Fire fox updated t his morning now half my web sites I used yesterday come up with this PR_END_OF_FILE_ERROR, bing , yahoo, usps and faacebook just to name a few!!!!!! Not Happy!!!

Hi

I had two Firefox windows open. One with 100+ tabs and the other with 1 tab. I closed the Firefox with 100 tabs, and then closed the one with 1 tab, without thinking. I then realised that I should have closed them in the opposite order, because I want the 100 tabs to get restored.

I opened Firefox again and was dismayed to see just the single tab get restored. I did some searching and backed up the "sessionstore-backups" folder.

I then tried to close Firefox and replace sessionstore.jsonlz4 with previous.jsonlz4 from the backed up "sessionstore-backups" folder. This did not work, as when I opened Firefox I still only got the 1 tab back and "recently closed windows" remains grayed out. Ctrl+Shift+N does nothing as well.

I used https://www.jeffersonscher.com/ffu/scrounger.html to inspect the backed up previous.jsonlz4 file and it shows

Open Windows Open Window 1 Tab 1 [...]

Closed Windows Closed Window 1 Tab 1 [...] [...] Tab 125 [...]

So the previous.jsonlz4 file does contain my mistakenly closed window but I can't get Firefox to restore the tabs!

Can anyone please help me get my tabs back? I'm on Firefox v96.0.1.

Hi

I don't know what's happened to cause this, but for the last few days if I grab a torrent file online, I only get the option to save the file, no option to automatically open in my torrent client.

I have been to Firefox general settings, and Applications - "Choose how Firefox handles the files you download from the web or the applications you use while browsing" but .torrent is not listed. When I search "torrent" in the Applications search box, I get only "magnet" as a result, nothing for "torrent" files (see image).

Any advice on how to automatically open .torrent files from the web in my torrent client would be appreciated.

I just turned off AdBlock Plus in the Add-Ons screen and downloaded ublock origin to try it out. There is no icon for this new plug in to be found anywhere. I can manually go in and change the settings on this plugin in the add-ons screen but there is no icon anywhere to go in quicker or to show a report of how many items were blocked. When I try to Customize my toolbars, the icon is not available there either. The nearest threads I can find on this topic are from 2018 and their solutions are very basic use. Yes, of course I restarted the browser. TIA.

uBlock Origin: 1.39.0 Firefox: 87 filterset (summary):

 network: 83588
 cosmetic: 80376
 scriptlet: 18231
 html: 598

listset (total-discarded, last updated):

 added: 
   adguard-annoyance: 47817-586, now
 default: 
   ublock-filters: 30169-27, now
   ublock-badware: 3455-1, now
   ublock-privacy: 182-0, now
   ublock-abuse: 70-0, now
   ublock-unbreak: 1706-0, now
   easylist: 61109-543, now
   easyprivacy: 26327-473, now
   urlhaus-1: 10038-0, now
   plowe-0: 3699-3, now

filterset (user): [empty] modifiedUserSettings: [none] modifiedHiddenSettings: [none] supportStats:

 launchToReadiness: 1924
 launchFromSelfie: false

I have been assigned a task to get the end of life dates on each of these versions of Firefox. Can you please point me in the right direction to obtain this information? Thanks!

Firefox 17.0.10 Firefox 17.0.5 Firefox 24.8.0 Firefox 3.6.13 Firefox 38.0.1 Firefox 38.6.1 Firefox 45.0.1 Firefox 45.2.0 Firefox 52.0.2 Firefox 52.1.0 Firefox 52.1.1 Firefox 52.1.2 Firefox 52.2.0 Firefox 52.2.1 Firefox 52.4.1 Firefox 52.5.1.1 Firefox 52.5.2 Firefox 55.0.3 Firefox 56.0.1 Firefox 57.0.2 Firefox 60.6.1 Firefox 60.6.2 Firefox 68.4.1 Firefox 78.3.0 Firefox 78.3.1 Firefox 78.4.0 Firefox 78.4.1 Firefox 79.4.1

I have a Win7 machine, and just bought a new Win10 desktop. I followed some instructions from a YouTube solution. From the Help>Troubleshoot>Profile Folder, I copied the profile folder (onto an external drive) and pasted it (from the external drive) onto the new OS(C:) as per instructions.

It did not work, I do not have all my bookmarks and extensions, etc. on the new Firefox browser I have installed on my new machine.

I don't know what to do now. All that was selected and overwritten is still selected on "This PC>OS(C:)" I was tempted to just delete all that shows selected...maybe not a good idea.

I really just wanted to migrate all my bookmarks, but doing the full profile folder seemed like a good idea at the time.... Help Mr. Wizard?!!

In most standard Windows applications, the title bar and tab colour follows the default Windows settings, e.g. (in my case) the title bar and tab colour of active application windows is blue. This is true even in Thunderbird. Since FF 89, title bar and tabs are something between white and light gray, which is extremely user-un-friendly. FF developer team should return to the previous colour scheme. Yes, I know the circumstances of free software but this is NO excuse to alienate millions of users. Developers that change fully functionable software just, well, just to CHANGE it should consider that they are doing WRONG. Could anyone tell them? I am just user, not developer and I am not willing to learn developer tools like BugZilla just for this simple guiding principle.

Hello all. Since the update to Version 113.0 I have been getting an error in my Event Viewer which is Event 2 Firefox Default Browser Agent . I am now on Version 113.0.1 and still get this error. Firefox is my default browser. Below is an image of what I see in my Event Viewer and also the full view of the event itself. I seem to not be having any problems with the browser but I was wondering if anyone could shed some light on why this is happening or forward to the Devs.

Respectfully, Don

Log Name: Application Source: Firefox Default Browser Agent Date: 5/14/2023 4:19:42 PM Event ID: 2 Task Category: None Level: Error Keywords: Classic User: N/A Computer: DESKTOP- Description: The system cannot find the file specified. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">

 <System>
   <Provider Name="Firefox Default Browser Agent" />
   <EventID Qualifiers="32775">2</EventID>
   <Version>0</Version>
   <Level>2</Level>
   <Task>0</Task>
   <Opcode>0</Opcode>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2023-05-14T20:19:42.8333225Z" />
   <EventRecordID>9023</EventRecordID>
   <Correlation />
   <Execution ProcessID="0" ThreadID="0" />
   <Channel>Application</Channel>
   <Computer>DESKTOP-         </Computer>
   <Security />
 </System>
 <EventData>
   <Data>0x80070002 in RegistryDeleteValue:320</Data>
 </EventData>

</Event>

So I just updated to version 106.0.1, and I noticed something new in the far right corner of the screen, an arrow with a dropdown function listed as view all tabs. I have no need for this and tried to use the customize toolbar option to remove it. It did not work. How do I get rid of this thing? It's just kinda taking up space on the screen as I doubt I'm ever gonna use it.

Any tips here?

I just added "TextArea" to my extensions & it only can be selected by clicking on the picture puzzle icon at the right edge of the address/search bar for a dropdown box of extensions. I would like to display it and a number of others now only on the dropdown on visible toolbars, but can't move them there. When I select "Customize," it shows some basic icons not being displayed, but only the basics and does not include extensions I've added recently. I used to keep icons in the All-in-One Sidebar on my left margin, the Vertical Toolbar on my right margin & the bottom Status bar in pre-version 57 FF and don't want the extra hassle of having to use the dropdown for commonly used extensions. How do I get these icons moved into an existing visual space on my browser? I have 3 36" HDMI screens & plenty of real estate to play with, but no way to use it in FF for new extensions. Do I have to continue to use alternatives like WaterFox Classic & Pale Moon?

hi,

i'm using FF (version 98 at the moment) to print local files. It is key to me to edit header and footer for each print! the only solution i found so far to edit them at all, is to go to about:config and for example search for print.print_headerleft. Besides that is not usable at all, it simply doesn't work! The header and footer remain the same. Please tell me how can i change header and footer?

If you delete the, in my opinion much better "page setup", why don't you include all it's funktions in the new print dialog?

another problem is the size of the new print preview! it's much to small! make it resizeable please.

Or just give us back the "page setup". That would be a big advantage over chrome and edge, which suffer the same printing problems.

Thanks

I'm having a number of issues with my Firefox out of nowhere.

1. My mouse will no longer scroll, nor will my keyboard arrows. I must use my touchscreen. 2. I have "new tabs" instead of "new windows" selected, yet if I click anything, it goes to a new window. 3. I cannot close tabs without right clicking. 4. I cannot SWITCH tabs at all. 5. I cannot close Firefox without going to my start bar and right clicking. 6. Firefox seems to be aware something is wrong, opens up in a troubleshooting mode... and then doesn't troubleshoot.

(It is entirely possibly my infant slammed on the keyboard and changed a setting I can't find.)