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duplicate of /questions/1446872 thread.

About tab crashes Every time I open Firefox, it crashes immediately and does not trigger the crash report window. Even though I have checked and enabled the option to send crash reports in the settings, it doesn't work. When I look for crash report logs, it shows that I have not sent any crash reports.I've tried many methods to view the crash report, but it just shows that there are none. I only found this information related to crash reports in the installation files.(you can see it in the picture)，hope someone can answer this question, thank you very much.😭

Trying to recover from a hard drive crash. Had to buy a new desktop with Windows 11 Pro (looking to be a bad move). I downloaded/updated to Firefox 126.0 (maybe also looking to be a bad move).

Have my last "working" userChrome file (it took me weeks to perfect this to my needs).

I am looking for: C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile>\

but there is no "AppData" folder. And there is no existing userChrome.css file, anywhere!

Is the functionality I am looking for a thing of the past?

Is Firefox not completely supported by Windows 11?

If so, what is the last version of Firefox that will still support userChrome.css?

Once you add a new account, you have to race to open up the settings and turn off the "Download all mails" setting that is hardwired as the default. Even after having done that, I am left with GB of copies of mail messages that I don't want to store on my local system.

How do I get rid of those local copies? Compacting doesn't seem to do it - there's no "Compact now" button in any case. I don't know what "when it will save over N MB in total" means, exactly. Save compared to what? Now 50% off!

Likewise, if I have Message Synchronizing (Keep messages in all folders etc) turned off, but Disk Space - Synchronize all messages locally regardless of age is still selected, is it going to download copies anyway or no?

If it will download anyway, or if it already did download, if I change the Synchronizing setting to "only the last 30 days" will it remove the older local copies? When?

The only "recover disk space" option deletes both local copies and originals on the remote server.

There really should be a "purge local copies" action available in the client. It may be that it is OK to go out to the OS and remove certain files myself, but maybe it won't be in the future. Every note that is about "Simply open a Terminal window..." describes specific files that don't quite match what I see here in May of 2024 on a Mac. But the tool itself knows what can be removed safely.

Locking this thread, please continue here: [/questions/1447949]
Every time I open Firefox, it crashes immediately and does not trigger the crash report window. Even though I have checked and enabled the option to send crash reports in the settings, it doesn't work. When I look for crash report logs, it shows that I have not sent any crash reports.I've tried many methods to view the crash report, but it just shows that there are none. I only found this information related to crash reports in the installation files.(you can see it in the picture)，hope someone can answer this question, thank you very much.😭

I have pictures that are slanted. Chrome, and Safari don't do this, so I know it is something with Firefox. Every once and awhile Firefox also has little square dots that appear s’ for ‘Firefox’

I started with Firefox on android, when i finally got a pc i decided to sync my data. This resulted in the loss of all but 1 of my passwords and Ive spent 5+hours trying to get them back. And i idk if i can. But with the help of this extension (https://addons.mozilla.org/en-US/firefox/addon/about-sync/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search) about-sync i can see the logs of them being deleted(where pics are from). Why cant i just revert this or have instances to revert back to?

Greetings: Here is an error message that is now so common that I can no longer send email to any account. Also, I have not been able to send email to any gmail account for last year or two. Please help. Error Message:

"Sending of the message failed. An error occurred while sending mail. The mail server responded: <MattMcKeegan_PLS@proton.me>... Relaying denied: You must check for new mail before sending mail.. Please check the message recipient "MattMcKeegan_PLS@proton.me" and try again."

Thanks. Matt.

Since starting my Win 10 Pro computer today, Thunderbird 115.4.2 (64-bit) has been "dead in the water". When it's launched, it posts the customary "Downloading Message 1 of [N]" status report, but then hangs right there, takes 3 or 4 minutes even to (re-)populate the tabs and panes that had been open, doesn't get past the alleged first new msg even in 15 or 20 minutes. When it does populate the Inbox pane, it shows no messages newer than last night just before shutdown. Very sluggish response to cursor, too: for ex. 30 seconds from clicking on a msg title in the Inbox pane to displaying that msg, even longer to bring up Help/About (with "Not Responding" shown in its title bar.)

  I get my mail through gmail's IMAP server but prefer to use Tbird's interface . Thinking there might be something evil about the first msg that was waiting to be downloaded, I used gmail's web interface to review everything new since last night, deleted several msgs that had attachments, then started Tbird again.  No change.  Can't even get Tbird into the "Work offline" state because it attempts download-of-new-msgs immediately after being started.
  The only consistently effective way I have found to STOP the hung Tbird is through (Classic) Task Manager's "Processes" list, which usually shows five or six "thunderbird.exe" instances.  After selecting whichever has the largest memory allocation I click on "End Process."
  This all "feels like" a bollixed internal state.  Does Tbird store internal-state information in its own file, or is it buried in the Registry?   If I attempt restoration from a backup, which files are needed; or is that unwise?
 I see there is a mid-April update available to 115.10; would installing it reset current messed-up internal state, or will that already messy situation prevent the update?   Is there any risk of losing my Inbox, Sent, etc contents?

Thanks!!!

I must utilize a radiology based website application that works best in Firefox. I utilize 3 monitors on my system and have Firefox browser working on Monitor #3. Unfortunately Firefox opens the popup windows in Monitor #1. I cannot find a setting anywhere that would force it to open the popups on the monitor that is running the Firefox browser. I do not have this issue with Microsoft Edge, Google Chrome just this browser. I only use Firefox for this application because of this. However, I must use it 4-5 hours a day and this is extremely annoying. Is there any way to fix this issue? In today's technology and the fact that most of us use multiple monitors, I would think this browser would be up-to-date in its options and ability to handle this. Any help would be greatly appreciated.

Hi when i have to download my bios updates i am being forced to use misrosoft edge or chrome none of which i use , so the question is can i use firefox safely thanks . Lee

Tēnā koutou (Hello everyone),

I deleted Firefox to re-install it after playing with profiles and that not working how I wanted it to (yet). I uninstalled the app from the applications and the library on my Mac and reinstalled Firefox. Now when I open Firefox it says that it's up and running but no windows actually open up for me. I have uninstalled and reinstalled it again and it still won't open windows. I have to force quit Firefox as nothing shows up in my top tool bar to even show Firefox as open.

How can I get Firefox to actually install and be functioning on my computer again?

Running (as of an hour ago) macOS 14.5 (was using previous up to date OS when I installed Firefox again.

TIA

Had all my emails stored locally. Accidentally uninstalled Thunderbird. Reinstalled. Unable to Import my old settings from my "profile". Error message says "Unexpected error" Was able to import configuration alone, but it was all wrong. Can't set up my gmail account. Error message "Malformed server" Please help

I need to go over the head of the Mozilla Triage manager who has left https://bugzilla.mozilla.org/show_bug.cgi?id=1406865 open without a resolution for **seven years**. How do I do that? This is a bug reported in Firefox 57 and **still** not fixed in Firefox 125. I cannot find any support category anywhere in the Mozilla website that covers appealing a decision by one of their employees. The last comment from this uncooperative indivisual is "But given we support it on macOS and Windows yeah, it seems not very objectionable." Who is this **clerk** to override the fact that a number of customers very much find this "objectionable". I cannot find anything on https://www.mozilla.org/en-US/contact/ that addresses this issue. I cannot find even a surface mail address for Mozilla. For example my complaint has nothing to do with any of the following:

   I’m having problems with using Firefox
   I want to donate to Mozilla
   I have questions about using Mozilla’s trademarks
   I’d like to report misuse of a Mozilla trademark
   I want to hold an event in a Mozilla space
   I want Mozilla to sponsor my event
   I’d like permission to use a Mozilla logo
   I’m interested in Pocket’s sponsored content on Firefox
   I’m a member of the Press and have a question for Mozilla

Yes I am having a problem with Firefox, but the clerk responsible has, through sitting on this issue for **seven years**, basically told the entire community that he doesn't give a reservoir.

In particular I feel this unacceptable behaviour should be brought to the attention of senior management, but there are no contacts for anybody in senior management.

My Thunderbird cache is using a gigabyte of disk space. I'd like to clear it, but it's not clear to me if I would be wiping out stored messages when I do that.

I like to download my emails to my computer (and keep copies on the server, too). I thought that was what I was doing, since I can view my emails when offline, but maybe I'm just accessing the cached copies?

Will I lose my old emails if I clear the cache?

ALERT ! wish to report an avalanche of emails from godaddy that are overwhelming my email box Tons of email under different names are coming from @registry.godaddy every day, the Junk filter is bypassed. A robot must be sending these one-liners using the flood volume as an attack. HELP!

Hello: I’m running iOS 17.3.1 on iPhone. The problem I’m experiencing: I used to see the Recommended by Pocket articles on my iOS Firefox homepage, but they stopped appearing a few weeks ago. I’ve searched for a resolution, but all I can find are the steps for customizing/personalizing my HomePage: the problem is that although I’m signed into my Firefox/Mozilla account and have chosen Firefox as my Homepage for New Tabs, and I’ve signed out, restarted the app and changed my Firefox settings several times, the option: ‘Recommended by Pocket’ ( along with the actual articles appearing on the homepage) doesn’t even appear anymore: I’m at a loss as to locating that option, as well as, again, seeing the Recommended Articles as they appeared previously. Thanks so very much for any help !

On my Android phone, the "close private tabs" notification keeps reappearing no matter how many times I tap it or swipe it away. Only way to get rid of it is by force stopping Firefox. Weird thing is that this issue doesn't repro 100% of the time either.

This is happening on Firefox 126.0, on my S23 Ultra running Android 14/One UI 6.1