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Today in two of my accounts I get error message "Unable to open the summary file for Inbox on imapML. Perhaps there was an error on disk, or the full path is too long." Two other accounts work fine so no error on disk, and full path hasn't changed.

Hi, everyone,

I have a strange problem with my TB installation - when I go to repair a folder through it's properies settings, TB deletes BOTH the message (mbox) file and the index (msf) file. There is nothing wrong with either (the folder is fine) - I'm just testing out TB's functionality as I'm moving to it.

The settings are set to always download everything and always keep everything. It's TB version 143. The reason I know the files get deleted is - if I disconnect the Internet connection and click Repair Folder, then go into the profile directory, the mbox file is just gone, while the .msf is sitting at 0Kb waiting for the connection to re-establish. Only the connection is back, TB re-downloads both the index and then ALL the messages in the account...! This is, obviously, highly problematic.

My question is two-fold: - is the expected behavior of the "Repair Folder" button to work offline? Should folder repair be possible even in offline mode? - has anyone else encountered this? I reported this on Bugzilla, along with another fellow who has encountered the same: https://bugzilla.mozilla.org/show_bug.cgi?id=1997845 But it appears the developers have a hard time believing it's actually happening...

Many thanks!

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Trying again doesn't help.

This is a fairly recent problem

Thanks for your help.

Whenever I want to print an email the print preview doesn't show, it keeps displaying a spinning wheel. Printing also doesn't work (as in, I press Save, enter a filename and press Save; the dialog closes but no file is generated).

I already tried the Troubleshooting information -> Clear saved print settings, but to no avail.

Browser console screenshot attached. I'm using Fedora 41 and Thunderbird 128.11.0esr (flatpak).

For the past few days, I haven't been able to use Google Lens for searches. Why? It used to work, and I haven't changed anything on my computer.

I read the support article about this problem: everything seems fine, Google is definitely my search engine... Can you tell me what I need to do to get it working again? Thank you

[edited email from public community support forum]

When File Explorer of Windows 11 25H2 tries to access and open an icon-file in the FF (144-64bit) profile's 'shortcutcache' folder, explorer gets Access Denied. The account running Firefox has admin rights.

Looking to the ACL of the profile folder containing the folder 'shortcutcache' show no reason for the blocking. Trying this with a new profile did not help.

I must have done something to mess this up,can someone help me fix this, cannot bookmark. I have used Firfox for many years. Thank you. Joe Daraio email- [edited email from public community support forum]

Hi Can you please help i have tried everything to get rid of this message i have uninstalled and reinstalled i have constantly refreshed and nothing helps,I get the message The bookmarks and history system will not be functional because one of firefoxs files is in use by another application also for quick access place your bookmarks here on the bookmark toolbar. I am not very technical but it is driving me mad please fix this for me Thanks

Hi,

I have 2 machines (Win10 and Win11) with FF 140.3.1esr (32-bit) installed which demonstrates the same failure when I enter one site's url:

PR_CONNECT_RESET_ERROR

Chrome at the same machines goes at this url w/o any failures. Any ideas what to change on "about:config" in FF to allow it opening this url w/o such error?

Hello, Since I updated my iPhones to iOS 26 hell broke loose. On my iPhone 14 ProI can no longer use Firefox as it quits when I open it On my 15 Pro I can use it but most of the time I half only half of the window. I do want you to be my default browser. Can you help, please? How come there is not one article on this? Many thanks! Natalia Great fan of yours

Long-time user here. A month or so ago I switched from 128 esr to 139 release, and since then I have had constant messaging several times a day that folders could nor be compacted. I've verified everything, but the message still happens with annoying regularity. I saw on Reddit that this may be a known bug, but thought I would report it to the forum anyway. Hope that it will be resolved in the next release.