Diễn đàn hỗ trợ Firefox

XUL Runner platform version 129.01 is not compatible with 129.0 miniversion 129.0 maxversion 129.0 When this happened at first I did not have the use of Firefox. I then went to Firefox and down downloaded Firefox and started over. Then I went to go to my bookmarks and could not find them, bummer. Now I still get this XUL Runner message ??????? email guybrochu@yahoo.com

Text link to Remedy (Windows 10, Firefox browser, both up to date) [edited phone#]

129.0.1 is not compatible with.... minimum version >= 129.0 maximum version >= 129.0

NEED TO KNOW: If I have to uninstall /reinstall, how do I protect my 1) bookmarks & folders 2) settings 3) add-on's

My computer has been warning me of low memory. Might that be causing or affect this?

So, I'm switching from Chrome and there's this one thing I can't seem to be able to replicate in firefox.

When I start my day I usually open several tabs from different pages of the same website. In Chrome, I would do that by: -typing the name of the website in my address bar -all the pages I frequently visited in that website show in my suggestions -I middlemouse-click all of them, one after the other -this opens one new tab for all of them -I then switch to those tabs and browse them

However, replicating this in firefox seems impossible. When middle-mouse-clicking the 1st link, I would have my window forcibly switch to it, not letting me open the other tabs without changing tabs again. Recently I learned I can avoid this forced switch by middle-mouse-clicking the URL on my address bar while holding shift, which is great! . . . Except it still closes my address bar, not letting me click the other ones without having to type the website's name in it again.

I don't mind holding shift (though I wish I didn't have to) but I really just want to middle mouse click multiple links in my address' suggestion bar and open them in succession, without shifting back to it after each time.

I'm using 128.0.3 (64-bit) for Windows, on Windows 10.

1. I open Firefox normal window. It has some pinned tabs. 2. I open an additional private window 3. I close the normal Firefox window. Only the private window remains 4. I close also the private window 5. I restart Firefox normal window. The pinned tabs have disappeared.

Thank you. Adrian

What does the following error message mean and how can the problem be corrected?

XUL Runner Error platform version '129.01' is not compatible with minVersion>=129.0 maxVersion<=129.0

Thank you.

Nora Jones

Receiving the following error message:

Error: Platform version '129.0' is not compatible with minVersion >= 128.0.3 maxVersion <= 128.0.3

How do I resolve this?

Hi. Yesterday something weird and unexpected happened to my Firefox and amongst other things it lost all my open tabs, of which there was about 70 or so. Another strange thing which happened is a website I use turned into Japanese language all on its own and in the end I was forced to delete cookies for that website to revert it to English, even though it was never changed in the first place. My homepage shortcut tiles were also all rearranged and some deleted. I have no idea what caused all this, but the biggest issue for me is that I lost all my open tabs. I refreshed Firefox to try to cleanse whatever it was that caused this, but even before this I lost my tabs.

My question here is; I am sure that the history of those open tabs is still listed somewhere on a file and I can get back my previous session which had all the tabs on it, but I have no idea where it is or where to look. How do I do this and where do I find the older file with the open tabs.

Thanks.

I tried a 2022 sourced help answer result content but it was broken, and that seemed to be the most recent gainful help response connected to my issue, another variant from elsewhere did not work at all, it was probably older still, so I need working code for the most recent version of Firefox Browser, or however recent enough to not so conflict. Much Appreciated.

I am trying to use the tree style tree expansion for Firefox. When I install the tab bar appears at left side as it should, BUT the tab bar appears at the top too. I understand it has to do with the userChrome.css: Questions: 1. The css file is supposed to be created in this folder: C:\Users\jssch\AppData\Roaming\Mozilla\Firefox\Profiles\ 6p6hqx7v.App1d96b2329ff34563bd901f480a66632f\storage\permanent\chrome I that the correct location customized for my pc. 2. Could you supply the correct code for the css file. I am assuming I can use Notepad++ to create the file.

Thank you for your assistance. My email is jsschwab2002@gmail.com

Jonathan Schwab

Hello. How can I post HTML code snippets in support.mozilla.org questions ? All HTML code is rendered and none of the usual markdown (``` etc.) works.

Yesterday, I noticed after I closed and re-opened Firefox, my browsing session was completely gone - all my tabs and windows, my entire browsing history, website sign-in status, all completely gone. I've been troubleshooting since then.

I've noticed that the 'sessionstore-backups' folder in my profile folder is missing. When I open Firefox, this folder is created and Firefox writes some data to it, but Firefox seems to delete the folder as soon as I quit Firefox. Firefox should not be doing this. My Firefox is configured to open previous windows and tabs, and is NOT configured to wipe any browsing data of any kind when it closes.

As a sanity check, I spun up a Windows Sandbox (briefly, it's a clean, isolated Windows environment) and installed Firefox there. I also enabled the option 'Open previous windows and tabs'. Firefox behaves normally - it re-opens the tabs/windows I had open when I quit Firefox. Great, that's what I expect. The trouble starts as soon as I sign in to sync. After signing in to sync, and letting the initial sync process complete, I open a couple of windows and tabs, then quit Firefox. Firefox begins nuking my browsing session again - the 'sessionstore-backups' folder is erased, and next time I start Firefox, all my windows and tabs are missing, and my browsing history is missing.

So, at this point, I'm assuming something in my synced data has become corrupt. I haven't installed any new extensions lately. I haven't changed any of Firefox's settings that would cause this to happen. The only thing I have done differently lately was enable Firefox Sync in LibreWolf and sign in to sync there. It seems like this session-nuking trouble started after I signed in to sync in LibreWolf. I assumed, since LibreWolf is a fork of Firefox, and because there were no warnings or indications the feature was incomplete/unstable/experimental/etc., that it would just work, that it wouldn't cause any issues. But it seems like it has caused issues. I checked LibreWolf's issues tracker for anything related to 'sync', but I didn't see anything noteworthy.

I've been using Firefox and Sync for numerous years without issue. This session-nuking thing started yesterday.

I use Firefox in a few places, and based on what I saw happen in my Windows Sandbox, this session-nuking issue is going to happen in every Firefox I'm signed in to as soon as it has a chance to sync. Obviously, I do not want this to happen.

What can I do to determine what the issue is? What can I do to check if something in my synced data has become corrupted? What can I do to reverse it? I'm not opposed to completely wiping/resetting my synced data, but I'd rather not if I don't have to. The only thing I would lose sleep over is my bookmarks, but I know I can export them. Are there any debug logs I can enable/look at? Anything I should look for in Event Viewer?

Thanks.

When trying to sign into a sweepstakes like HGTV Sweepstakes, the website will not show the "Fill-in the Blank" area to insert my email address. This happens in all the sweepstakes that I try to enter. If I use Microsoft Edge, the Fill-In Blank is there, but not when I use Firefox. It will work on my laptop in Firefox, but not on my desktop.

I noticed today that there's a small blue cube appears at the tip of the mousecursor inside a firefox window , I guess it's some keyboard shortcut I accidentally activated but can't find any info on where to disable