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I turned my computer on; Mozilla wanted to update, so I said yes. Then I got this:

XUL Runner Error: Platform version '120.0.1' is not compatible with minVersion>=120.0 maxVersion<=120.0

And now I have no Mozilla. Restarting the computer didn't help. How do I get the old version back? I really absolutely must have all my bookmarks back....I use them for work!

I recently sent a lot of tabs from my phone to my computer. However, when I started Firefox on my computer, since Firefox tried to load the content of all sent tabs immediately instead loading them lazily (which I think probably should be the default behavior), it took a very long time for Firefox to display even the tab that was currently selected, and I therefore decided to kill Firefox and reopen it, in the hope that all new tabs would load lazily. Instead, when I reopened Firefox, none of the new tabs where there anymore; it was as if they had never been sent. I would like to get them back, but I have no idea how to. Does anyone know if that is possible and, if so, how?

How do I stop firefox from automatically downloading files from the internet when I click on them - without even asking me if I want to download them in the first place. In "Applications", selecting "Always Ask" in "Choose how firefox handles files etc" does not work. Firefox never asks. If it cannot be disabled, I will have to stop using Firefox.

My profile is not able to recover saved password. Logins.json file copied in the new profile but password not visible. In the default profile logins.json.corrupt appeared. I am looking for a procedure to recover information in corrupted profile. Can you help?

Greetings,

My Firefox keeps crashing randomly even though it's a new PC with very capable good hardware. My old laptop used to run 100s of tabs without any issues.

However, on this new PC, the crashes are fucked even though I barely have about 20 tabs open.

Here are some crashing reports:

https://crash-stats.mozilla.org/report/index/cd41eedb-d3a3-4717-8210-d3ea70231230

https://crash-stats.mozilla.org/report/index/4f72d2f1-70e6-4499-9078-7a7760231230

https://crash-stats.mozilla.org/report/index/c43bd61d-248d-42de-aa40-fd6490231230

https://crash-stats.mozilla.org/report/index/9dc3e8b9-6871-4d4c-940d-83fa40231111

https://crash-stats.mozilla.org/report/index/61c7b9d7-bbc9-41e1-969e-7396e0231230

https://crash-stats.mozilla.org/report/index/646b38fc-e2d6-4376-8310-537960231230

https://crash-stats.mozilla.org/report/index/da22561f-eb48-4dd2-ac61-b3d7e0231230

https://crash-stats.mozilla.org/report/index/823b8e27-a69a-4251-bf71-587ec0231230

https://crash-stats.mozilla.org/report/index/6fd3ae37-b8ef-4048-ab0b-0c9c60231230

https://crash-stats.mozilla.org/report/index/22e4ea87-2622-4c2d-b731-76b2b0231230

https://crash-stats.mozilla.org/report/index/9eac33bf-dd2c-437e-a2c9-96fc90231230

Kindly help. Thank you.

My firefox just crashed and despite having sync active, saved ZERO of my dozens of tabs. in restarting, i see that despite sync still "on", it is only syncing a handful of tabs, and doesn't even update when i do so manually. am on a windows machine, but use firefox on two of these in addition to android.

will be switching to brave full time without Mozilla's help here.

thanks, z

For some reason when I try to download a screenshot of [this tweet] it fails every time; I tested it and it's just that tweet specifically. This has never happened before and I assume it's just a bug since copy-pasting still works. Any help with this?

Yesterday Firefox started closing at random, sometimes instantly as soon as I open it. The crash dialog doesn't open, and if I go to about:crashes my most recent unreported crash is from 2019. Tried refreshing, reinstalling, completely wiping all profiles and starting fresh. If I use troubleshooting mode it won't open properly at all. I am at a bit of a loss, any ideas?

Hello

Just to report Firefox 121.0.1 (64-bit) unable to upload any video formats on youtube and always having invalid video format error. I'm unable to upload even that videos what was already successfully uploaded some times ago. I using Microsoft Edge now to upload on youtube and it is fine with all my videos. Hope you can fix soon.

On all sites where I need to login with my work account I get a tab crash when the browser redirects to https://login.microsoftonline.com/ac4b0eb0-811e-4ab0-acca-8a87079290dc/oauth2/v2.0/authorize?response_type=id_token&scope=user.read......

This is a recent failure (this week), that occured without any changes on my own account to Firefox developer version 121.0b2(64-bits)

I had to install google chrome to overcome this problem. Chrome has no issues with microsoft authentication.

Please solve as soon as possible, otherwise I will be switching to another browser.

I just updated to Firefox 120, and tried the new GPC setting (Tell websites not to sell or share my data). I ran into a problem when I went to the Xfinity community forums (https://forums.xfinity.com/) . It causes a banner on top showing they recognize the setting. There is an "X" in the corner, and some text that says "Hide this banner", but they are not active. Plus, I cannot make a new post or do a general reply (that weird forum software has both local replies to a particular post and general replies to the general thread.)

Is this a bug in Firefox, or a bug in their forum software? I attached a picture of the message it gives.

Yesterday I was playing videos on rumble fine. Sat my laptop down, picked it back up after waking up and suddenly no sound on any rumble.com video. Youtube plays video and audio fine. So does X and truth social. In fact, any website plays audio EXCEPT rumble.com. Its not Windows related. Its firefox related. I installed Chrome and rumble.com plays with sound fine. I uninstalled firefox and reinstalled and that didnt fix it. I have rumble installed via WebCatalog an it plays videos and audio fine. I then installed Firefox nightly and never signed in or anything and still rumble isnt playing sound. Its rumble+firefox=no sound. And it appears to be happening to others too on other help forums. DOES ANYONE KNOW HOW TO FIX THIS?

After installing Thunderbird i had first download problems for new Firefox Versions. I tested around, installed everything new and found the solution. Somehow the Maintenance Service didn`t work properly on my machine and after deinstalling and restarting i can update firefox again. Problem remains: When trying to install Offline Languages , see picture, i get the message that it does not work. I tried everything possible, including reinstalling and deleting all old profiles (was a lot of work). Any ideas?

I recently upgraded from Window 7 to windows 10. Ever since, the spacing between the bookmarks has significantly increased. I read several post about this and they all seem to be looking for something in Firefox. I think it has to do with something in windows 10, not Firefox. Any ideas? I've already done the Density/Compact thing. Slight improvement, but not anything like it was under Window 7.

The pinned shortcuts on my newtab page have all disappeared once again. I've gone to about:config > browser.newtabpage.pinned and my shortcuts are all listed. But only blank boxes show up on the page. It will not accept a new entry when I try to enter one. It goes back to the blank white box. Why does this keep happening? Can anyone give me a Firefox for Dummies way to fix this?? Thanks!

Email removed for privacy

I've written about this before and never got a working answer. I have to use Chrome or internet explorer for some work because FireFox won't open the sites. This problem hasn't been fixed by I clearing cache and cookies as recommended back when I first asked a year or so ago.

Now the latest website I haven't been able to use is the Post office! USPS.com -- If I try to track a mail piece using my tracking number the site can't bring it up. The site tries for long time then tells me to try later. When I try with another browser such as Chrome, the result is there within a couple of seconds. It looks like I'm going to have to leave FireFox which I hate as I've used it so long - over ten years at least.

Version 121 Windows 10