All Products Community Forum

It's very odd. Normally moving an email, say from the Inbox to the relevant year's archive, takes "no time at all".

Which is true for all the mailboxes shown on the attached screenshot, EXCEPT for the four at the bottom. Moving even one message from Inbox to Yiddish can take ten seconds or longer (with the dreaded "Not Responding" occasionally). Moving something in the opposite direction is also screwy, only from those four.

I had thought that it was because they're rather large. This first started when there were just Yiddish and MSW, and I split off most of the earlier years into the archives shown. To no avail.

It's only an annoyance, but I'm puzzled about how such a thing could happen.

Also very slow tagging or untagging a message just in those mailboxes.

Hi All,

Thuderbird 140.12.0esr (aarch64)

iMac 24Gb M4 Chip macOS Tahoe 26.4

When I request a search through Unified Folders Inbox for 10 email addresses using Quick Filter, CPU goes to 80% or more, and response is 10-15 seconds. Main search appears to be ok. Only add-on was a printer service but has been disabled and problem still remains. In troubleshooting mode, search still causes high CPU, even though I can only search one email address. Just started about 2-3 days ago (around 17-18 June).

Any ideas?

Thanks.

Whenever I have just 1 Window of Firefox and just 1 tab open, task manager ALWAYS shows 14. Why is this? I have refreshed Firefox and lost some of my settings, it did nothing. Have I been hacked and someone else is controlling my browser?

Screenshot shows one firefox with one tab and yet 14 next to it in Task Manager

We have an asp.net Blazor SPA (server side Blazor) that dynamically generates components within the page. Over time, there is a very large RAM leak under document-shared that climbs until the windows are closed.

We have tried various firefox configurations to try and either disable this shared storage as well as limit but with no luck. THe memory allocation is in GB of RAM space and cannot be limited or reduced until the window itself is closed/restarted.

Research online indicates this can happen due to colocated stylesheets and how firefox wants to cache styles aggressively. Adjustments to move stylesheets does not appear to help.

What configurations can I use to help prevent/reduce this high RAM usage? This does not occur in Chrome or Edge, I cannot replicate this well under FireFox for Windows.

I recently moved from macos to linux and noticed that Thunderbird always reloads one account on startup -- by that I mean that, when I open TB, three out of four accounts display immediately, but the fourth one takes a moment, and then all its folders start appearing in the left-hand-side column. I had a look around and saw something about the .msf file being broken, with a solution being to delete it and let it be rebuilt. I headed to my profile folder but I now see that, in the ImapMail folder, the three accounts that appear immediately have their respective folders and .msf file, but not the account that reloads every time. I tried clicking on "repair" on the (unified) inbox, I tried checking the settings, but am not seeing anything that helps. Any ideas?

So ever since the desktop browser got updated i have been experiencing critical crashes and lag where my pc screen freezes and then goes to black until i restart my graphics card and quit firefox in addition to tabs crashing and very weird performance issues overall, any fixes for this issue?

My Firefox is set to auto-update and did so Wednesday night, so it's currently 152.0.1 (64-bit). Since then, it’s been virtually unusable on my home computer (a 2017 iMac Intel Core i5 running Ventura 13.7.8).

I’ve changed nothing about the way I browse, yet having multiple tabs open at a time makes the application either non-responsive and I have to force quit or makes it crash (from today: bp-3c95c176-fde2-40e4-a61c-c5c080260619 bp-7ebe2fc9-0be2-4db2-b0e3-675df0260619 bp-bfe86698-eaf0-4cd2-96c3-ed20b0260619

It crashed four times yesterday as well, but I inadvertently submitted ALL previously un-submitted crashes, so I'd have to dig through to find ones from June 18th).

I can't get most websites to load. I cleared all my browsing data this afternoon in the hopes that it would help, but now I'm having trouble logging into sites like Facebook, Instagram, etc.

Videos on any platform will not load, let alone play. Instagram, YouTube, Peacock (which I think was having an outage last night), Twitter, BlueSky, etc. YouTube BRIEFLY loaded and played a video last night but there was no audio. I tried searching a word’s pronunciation in Google, no audio. It will not play audio on any music sites (SoundCloud and Bandcamp; they both show that the music is playing, but the indicator bars do not move on either site, and again, no audio).

I believe this is an update issue because work computer (MacBook Air, 2017 running Monterey 12.7.6) is using Firefox 151.0.1 and everything is working as normal there (fortunately I leave Firefox open all the time on that computer so it hasn't auto-updated). It had also been running fine BEFORE the update.

Any ideas on a fix?

receives no email. sends no email. my server received many emails since then. everything else seems to work. it is not my server as I have Outlook, which received the emails. Only thunderbird is locked-up.

So I have noticed it for a couple of years now, and still this issue isn't solved. I am attaching the screenshot. When my phone is in an idle state, the Firefox app is in the background and my screen is switched off. Then the Android device should go into doze mode and save battery, but that doesn't happen due to Firefox. There is an audio wake lock, and it doesn't let the phone go into doze mode. If I always try to close the tabs when I am leaving Firefox, then yeah, it gets solved, but that defeats the purpose of having a powerful smartphone.

When I try to delete mail from Deleted folder (even if there is just 1 email), the thuderbird gets unresponsive. Same when i try to select few emails (headers) for deletion or moving to another folder. Running on Windows 11

we are using firefox std version in more than 15000 machines in our organisation, recentlty we migrated to all machines to ESR version, but now we are getting escallation, the application working very slow and not opening sometimes

День назад установил ваш браузер и он почему-то даже в простое просто грузит ЦП до 40-50% без причины раз в пару минут начинает резко грузить на какое-то время и спадает и так по кругу. В чем проблема? Стоит последняя версия соответственно

I have a new laptop and installed Thunderbird. It shows lots of messages in all the folders, but will not show any messages in the message screen. It just continues to show the opening logo

It says that the folder is in use by some other operation. I tried a Force Quit and a restart and neither worked. Please help.

His OS is 10.13 and his TB is 115.18.0. He kept the old Mini because he was running an ancient version of Photoshop that ran a plugin that is not available for Adobe Creative Cloud.

Robert was a sculptor who did large kinetic work and much of his work is still on that computer.

I am still getting his email on my iPhone, so I don't know what is going on. Unfortunately, I haven't saved his email history on my iPhone so when someone answered a similar problem a couple of years ago, the only place that email would reside is in Robert's inbox on his Mini, which I can't open.

Many thanks for your help.

Ellen

before v151.0.2, didn't have a problem with firefox, now with this new release, it is really really slow, takes some time to start and load pages. what happened??

All folders are shown ticked but they do not appear. I can view one folder at a time with Go>Folder>my account>Inbox(say).

Using IMAP. Firefox 151.0.4 I don't know what I could have done to cause this.

Hello Firefox Team

I'm having a problem with Firefox running very slowly, especially when watching YouTube videos. Videos take a long time to load, keep buffering, and sometimes get stuck while playing. The browser also feels slow overall, not just on YouTube. My internet connection seems to be working normally. I have already tried clearing all browsing history, cookies, and cache, but the issue still persists. I'm not sure if the problem is related to Firefox settings, extensions, hardware acceleration, or possibly a hardware issue with my PC.