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Just this week I started having problems where Thunderbird hangs, apparently due to a memory leak, after viewing S/MIME signed emails containng embedded hyperlinks to a secure site that requires my certificate to login. This is on a Dell Precision 7550 running Windows 10, and Thunderbird 91.9.0 (also the previous installed version - I believe it was 91.8.1).

After clicking on such an email (which come from a known address and are forwarded to a specific folder by a rule), the email is slow or fails to load into the display window. Subsequent clicking on other folders has a delayed response or never responds. I sometimes get a message at the top saying (Not Responding), sometimes I can click on other email records or switch folders, but emails no longer display contents in the viewing pane - it stays blank.

The other think I noticed is the blue bar at the lower right which appears when compacting shows up with the bar at 100% but never goes away. To end the task I must use Task Manager. This behavior only occurs after I have clicked on signed email with links (but not the link itself) that require a login using the smartcard certificates. Prior to looking at the signed email with these links, TB operates normally (aside from the endemic new user interface issues) when viewing other signed or unsigned emails. Curiously, in my most recent restart of the program, I clicked on several messages from the source of the emails with the hyperlinks, but ones that did not link to the secure files requiring certificate access. One of these was encrypted and opened normally with my certificate, and after accessing this email, the emails with the secure hyperlink opened normally and did not result in TB not responding.

I believe this has something to do with TB and S/MIME configuration, and have verified this behavior does not occur in Troubleshooting mode. However, in Troubleshooting mode, I cannot access my PKI S/MIME certificates as the Broadcom smart card device is not present. I am attaching a task manager snip showing the memory leak (the memory used continues to increase with time, the CPU percentage stays roughly the same - unfortunately this file upload has a perpetually spinning circle and still says it is uploading, so I may have to try again). I have also included the Device Manager view associated with the S/MIME certificates in regular and troubleshooting mode which show the internal Broadcom device is not present in the latter instance. I need to have the functionality and security provided by the smartcard S/MIME certificates, so this is a major problem for me.

I can log into GMail via our SSO just fine, however after a few minutes I see the "error connecting for X-minutes" bar. I try to force refresh the site and every time I get the bellow error. This is also happening when I am using Firefox Troubleshooting mode, to see if maybe it's a plugin/extension causing this issue, but it's not.

Secure Connection Failed

An error occurred during a connection to mail.google.com. SSL peer reports incorrect Message Authentication Code.

Error code: SSL_ERROR_BAD_MAC_ALERT

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

v91.7.0 on OS X 10.14.6 Used TB for many many years. Have a Charter IMAP email account set up. All of a sudden a good number of months ago, all my emails in my Inbox have a banner that says "This is a draft message" when just clicking on them in the email list.

> https://i.imgur.com/joLqACp.png

Opening any of those mail (which for some reason always opens as Write: mode, whatever that is, not view or reply; not sure what's going on there either) will show a yellow banner at the bottom of the email with the following: "A unique identity matching the From address was not found. The message will be sent using the current From field and settings from identity <IDENTITY> <MY EMAIL>."

> https://i.imgur.com/svBSvqi.png

Any other folders, like Sent or Saved folders don't show or have this issue. I am not and don't use Unified View. I also have two GMail accounts and neither of them are doing that with their Inboxes.

EDIT: It displays some similarities as the bug here, but not all of them (https://bugzilla.mozilla.org/show_bug.cgi?id=1508153). For example I don't get a double window.

I can't send out any emails all of a sudden. I'm getting the following error message: "Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtpauth.earthlink.net failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again."

Please advise.

Jaime Ziadie [phone# removed from public] [email removed from public]

Until several weeks ago, new windows created through Javascript with window.open() worked. We could pass the new size, and other features, e.g. menubar, toolbar, etc. and they would show up. As of v.76.0 this is no longer true. The parameters are ignored. If we use no parameters, the menubar, etc. do show, but we can't control any new window features. We have not changed our programs at all, and window.open() parameters still work correctly in Chrome, Brave, Edge, etc. How do we get Firefox to recognize the window.open() parameters (again)?

Updating to version 38.1.0 Start Thunderbird, Starts up OK. Can view messages and write new emails etc OK. If I select "get messages" OR messages are accessed automatically every 5min. then the whole PC crashes. Three finger salute does not bring up task manager. Only way out is to power cycle.

Thanks in advance for your help Cheers Pete

Follows is the Help Troubleshooting info.

 Application Basics

   Name: Thunderbird
   Version: 38.1.0
   User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0
   Profile Folder: Show Folder

             (Local drive)
   Application Build ID: 20150707103124
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory

 Mail and News Accounts
   account1:
     INCOMING: account1, , (none) Local Folders, plain, passwordCleartext

   account3:
     INCOMING: account3, , (pop3) pop3.talktalk.net:110, plain, passwordCleartext
     OUTGOING: smtp.talktalk.net:587, alwaysSTARTTLS, passwordCleartext, true

 Crash Reports

 Extensions
   Lightning, 4.0.1, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}

 Important Modified Preferences

   Name: Value

     accessibility.typeaheadfind.flashBar: 0
     browser.cache.disk.capacity: 358400
     browser.cache.disk.smart_size_cached_value: 358400
     browser.cache.disk.smart_size.first_run: false
     browser.cache.disk.smart_size.use_old_max: false
     extensions.lastAppVersion: 38.1.0
     font.name.monospace.el: Consolas
     font.name.monospace.tr: Consolas
     font.name.monospace.x-baltic: Consolas
     font.name.monospace.x-central-euro: Consolas
     font.name.monospace.x-cyrillic: Consolas
     font.name.monospace.x-unicode: Consolas
     font.name.monospace.x-western: Consolas
     font.name.sans-serif.el: Calibri
     font.name.sans-serif.tr: Calibri
     font.name.sans-serif.x-baltic: Calibri
     font.name.sans-serif.x-central-euro: Calibri
     font.name.sans-serif.x-cyrillic: Calibri
     font.name.sans-serif.x-unicode: Calibri
     font.name.sans-serif.x-western: Calibri
     font.name.serif.el: Cambria
     font.name.serif.tr: Cambria
     font.name.serif.x-baltic: Cambria
     font.name.serif.x-central-euro: Cambria
     font.name.serif.x-cyrillic: Cambria
     font.name.serif.x-unicode: Cambria
     font.name.serif.x-western: Cambria
     font.size.fixed.el: 14
     font.size.fixed.tr: 14
     font.size.fixed.x-baltic: 14
     font.size.fixed.x-central-euro: 14
     font.size.fixed.x-cyrillic: 14
     font.size.fixed.x-unicode: 14
     font.size.fixed.x-western: 14
     font.size.variable.el: 17
     font.size.variable.tr: 17
     font.size.variable.x-baltic: 17
     font.size.variable.x-central-euro: 17
     font.size.variable.x-cyrillic: 17
     font.size.variable.x-unicode: 17
     font.size.variable.x-western: 17
     gfx.direct3d.last_used_feature_level_idx: 1
     mail.openMessageBehavior.version: 1
     mail.winsearch.firstRunDone: true
     mailnews.database.global.datastore.id: 268c1c45-39c9-4fb8-af58-00e0c832e32
     network.cookie.prefsMigrated: true
     network.predictor.cleaned-up: true
     places.database.lastMaintenance: 1436862237
     places.history.expiration.transient_current_max_pages: 104858
     plugin.importedState: true

 Graphics

     Adapter Description: Intel(R) G41 Express Chipset
     Vendor ID: 0x8086
     Device ID: 0x2e32
     Adapter RAM: Unknown
     Adapter Drivers: igdumd64 igd10umd64 igdumdx32 igd10umd32
     Driver Version: 8.15.10.2302
     Driver Date: 2-11-2011
     Direct2D Enabled: false
     DirectWrite Enabled: false (6.2.9200.17292)
     ClearType Parameters: Gamma: 2200 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 50
     WebGL Renderer: false
     GPU Accelerated Windows: 1/1 Direct3D 11 WARP

     AzureCanvasBackend: skia
     AzureSkiaAccelerated: 0
     AzureFallbackCanvasBackend: cairo
     AzureContentBackend: cairo

 JavaScript

 Incremental GC: 1

 Accessibility

   Activated: 0
   Prevent Accessibility: 0

 Library Versions

     Expected minimum version
     Version in use

     NSPR
     4.10.8
     4.10.8

     NSS
     3.19.2 Basic ECC
     3.19.2 Basic ECC

     NSS Util
     3.19.2
     3.19.2

     NSS SSL
     3.19.2 Basic ECC
     3.19.2 Basic ECC

     NSS S/MIME
     3.19.2 Basic ECC
     3.19.2 Basic ECC

I recently upgraded graphics cards from an Nvidia GTX 1080 to an AMD 6900XT. Since then I noticed video stuttering on YouTube while playing 4k videos, especially noticeable at 4k/60FPS (example video ). Prior to the upgrade, I was not experiencing issues.

I monitored task manager as the video was playing to see CPU usage, which was sitting at 25% (4 core 8 thread CPU). GPU usage was fluctuating from 1-3%.

I tried resetting all the changed configuration options in about:config, removing all add-ons, "Refreshing" Firefox, and ultimately uninstalling and reinstalling. Nothing has worked so far except for "Troubleshooting mode" in about:support. In that mode, I experience no stuttering and GPU usage rises to 25-35% with the video playing, even before I reinstalled.

This most likely isn't a networking issue as the "Stats for nerds" option on the YouTube video shows I have 10-20s of buffer while the video is still stuttering.

I would like to find out what's different about Troubleshooting Mode that is not giving me the same problem while in "Normal Mode". Any advice?

I saw this post https://bugzilla.mozilla.org/show_bug.cgi?id=542690 where it seems implied that it should work, but on LMDE 5 w. firefox 98.0.2 64-bit scrolling horizontally w. touchpad doesn't work for scrolling on pages nor for scrolling the tab list at the top.

I have Thunderbird installed on two computers.

On one of the computers, emails being held in my inbox are being automatically removed after two weeks (this is not a desirable action, I am loosing important emails), but on the other computer that is configured exactly the same, emails remain in the inbox indefinitely (which is desired).

Both computers are POP and both configured to run the same email account and appear to have all of the same configurations and settings. I saw someone had posted the same problem a while ago and the reply indicated it may be that the ISP or email provider has their settings set to delete emails as per the two week window, but as I can assure you this is not the case, it is a configuration issue with one of the Thunderbird installations, otherwise both of my computers would be deleting the emails while that is not the case.

Thanks,

Jeff Rogerson

When I open a website, the message "Firefox is already running" comes up every time. Task manager says nothing is currently running. I have to click "close Firefox every time I go to a website. Can you help? Thanks Alan Murray

Hi. On dictionary.com when I type in a word in the search bar and press enter, it works fine, but when I am on a definition page on dictionary.com (not the homepage) and I type a word in the search bar and press enter, it does not work. The page does not respond.

Also when I am on biblehub.com and I type in a reference (like Genesis 1:1) in the search bar at the top and press enter, I get directed to a blank page: https://biblemenus.com/topmain/send.php?q=undefined

In the search bar at the top of biblehub.com I must click the magnifying glass icon in order for it to work, which is annoying.

Note that a while ago (I don´t know how long ago) these things used to work correctly. I don´t know whether a Firefox update caused the problem or whether it was a change to the coding on the webpages. I am on the latest version of Firefox. Neither of these problems happen on Chrome.

Let me know what can be done to fix it. Thank you.

FireFox Developer 99.0b8 (64-bit) on the "aurora update channel" on Windows 10 PC (version 1803, build 17134.2208)

I notice whenever an update is pending (the green dot appears in the icon for the "Open Application Menu"), FF becomes unresponsive in a way. When it happens: It does not totally freeze. I can select/switch between existing tabs & scroll thru their pages. I can close tabs. I can open a new empty tab. But I can't load or refresh any pages. The only fix is to do the update, and re-launch.

Since the developer edition gets updated frequently, it is a pain.

I like the Developer Tools! But... How can I scale back the FF "update frequency", or "change the channel", so updates are, like monthly at most?

thank you.

Access to Google sites (Gmail, Google Search, Google Calendar) with Firefox (v. 100.0, 64-bit) is very irregular. I can sometimes open the pages, but can't, e.g., edit calendar entries. Often when I click a bookmark (in the Bookmarks Bar), or enter the URL for a Google site, nothing happens. Clicking other bookmarks opens the corresponding pages. Only Google sites seem to be affected. Is FF blocking Google?

Used Firefox for many years with the inbuilt Microsoft on screen keyboard without problem.

After updating Firefox a couple of days ago to the 100 edition when I enter text in Google and press enter Firefox instantly crashes.

If I use the touch screen keyboard in windows its fine.

Using windows 10 fully updated.

Any help appreciated.

I have W10 fully updated with plenty of RAM but in the last few weeks, after I boot up in the morning (I shut down every night) it takes a long time (several minutes) for either Firefox or Thunderbird to fully boot up . Firefox opens tomy home page, but does not complete for several minutes so I can go nowhere. If I am patient and wait it is fine the rest of the day..nice and fast. If I shut down and reboot again- very very slow opening of both for the initial time. I have run full virus scans, sfc/scannow, malwarebytes, cleared history and cache and cookies, turned off and on hardware excelerator. Any other suggestions? Word and Excel open quickly as usual.

Please fix the abovementioned problems,make a browser bit faster,improve the consistancy of the browser so that it will stop crushing.Please make it stop alternating or change mail pages.

I'm running v100.0.1 (64-bit) on Win10. I've seen others report this problem but haven't found a fix listed anywhere. <Ctrl-P> or Menu->Print results in the same problem. The print overlay starts up (say Print in top right corner), spinning wheel above Preparing Preview in the center of the overlay... Never ends. I have to Esc to get out of it. Happens on any page. Print dialogue works fine on same pages with Chrome and Edge.

I'm a long time user of Linux Mint. Now on 20.3 and Cinnamon desktop. Also a long time user of Thunderbird. Now in version 91.8.1 Always used the "allow insecure apps" in my gmail account settings and used normal password stored in Thunderbird. Google urges to change the authentication method to oAuth2. Tried everything to no avail. Always "authentication fails when connecting to imap.gmail.com" Cleared all cookies, allowed them, deleted all saved passwords, followed all published advise I could find, and nothing. Then I made a brand new profile pointing to an empty dir and entered my gmail address and checked everything. Same result. In despair I installed Evolution and all run fine at the first try. Should I really give up on Thunderbird? Thanks in advance for any help!

I have fedora 36 Linux on my laptop and I have installed Firefox from the software store. The version in Help>About>About Firefox shows 99.0.1 (64-bit).

I am able to play videos on Youtube but no video or GIF is playing on Twitter/Reddit/Facebook.

I have installed media codecs as per this fedora help

My autoplay setting look like as per the attached image. I do not have any extensions except Bitwarden on Firefox.

I also tried playing videos on Firefox 100 by downloading it directly from firefox website but faced the same issue.

I have Firefox 100.0.1 on my Mac desktop, and Firefox 100.0 on my MacBook Pro laptop. I can no longer access my Microsoft OneDrive account via the web on my desktop, but I still can do so on my laptop. I have gone through your posted troubleshooting steps for Firefox on my desktop, to no avail. How do I get my desktop back to version 100.0 so it will work again? I can access my OneDrive account via the web on my desktop when I use the Safari browser, so the issue is definitely with Firefox version 100.0.1, and not with my desktop.