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As noted by others about recently-prior versions of Firefox, version 129 ALSO fails to play videos (on Amazon Prime) at HD even though other browsers, Chrome and Edge as examples, work perfectly well. This problem MAY have started with a fairly recent version of Firefox (like 127 or 128). See the post right here by another user, earlier Firefox version, with the EXACT same problem:

https://support.mozilla.org/en-US/que.../1455729

I have the same Gmail Account in the same version of Thunderbird (128.0.1esr (64-bit) on my 2 Laptops. My Contacts in my browser (Firefox) show 127 contacts. On Asus 2 only Address Book shows contacts (127) On Asus 1, Address Book shows 330 contacts, Personal Address Book shows 126 contacts. All contact items in FF Bin are empty.

Firefox is running EXTREMELY slow on Mac. I have tried everything I could find, I have gone through all the troubleshooting stuff I could find, yet the problem persists. It takes forever to load a site, or to open a new page. Apparently, Firefox is also using a lot of energy.

Strangely, I can't figure out how to add to someone else's post if it doesn't already have replies so I'm having to start my own thread. Anyway...

Thunderbird on my system is 32-bit on 32-bit Windows and a day or two ago it updated itself to version 115.10.1. Since then it's been slow at sending emails, receiving emails, applying filters and pretty much everything else. Is this being worked on? I saw a couple of similar reports from other people here but like I said, I can't add a reply to them.

And if it's not known about or being worked on, is there some way I can roll back an update?

Two months ago I had to install Thunderbird as New and I can't access my personal Gmail account. Everytime it fails to connect to gmail servers (Error 400). Two others, also Gmail work fine and in other programs like Vivaldi Mail, Outlook, Windows Mail it works seamlessly, but for more than 20 years I was using my Favourite Thunderbird. The problem persists even after todays upgrade. I tried even with portable version and tripple-checked the password and Servers setting.

I ran out of ideas.

Can you help?

Dare

my email on my laptop is using Thunderbird I am having a serious issue with not being able to send more than 8 emails per day Optus notified me I had to authenticate my email and gave instructions on how to do this for Thunderbird I have followed all instructions to do this, but I cannot get any more than 8 to send still Have been trying this for 3 days now

All works fine on my iphone!!!! And online on the Optusnet Webmail

So, I need help asap please on how to get it working on Thunderbird Thanks Lee

When I go to 'junkmail' in my Hotmail, the page opens but after a second or so gives the fault message I've attached. It started this two days ago. Not being able to access my junk mail is very inconvenient.

Regards,

Peter

The address bar is driving me crazy tbh. I want to search for something from it and it works most of the times but doesn't some other times, and I don't know why. I did try to refresh firefox after you click the helper software to uninstall it, but it still doesn't work all the times, and I also tried this (https://support.mozilla.org/en-US/questions/1337970), yet it still doesn't. I might try to uninstall and install it again but is there anything else I can do if it still doesn't work?

Some times I get a reply to an email I sent out using my hotmail account and Thunderbird says I have one new message but the message does not show up in my inbox. If I login to my hotmail account through Microsoft it show it in my in box. What is the problem and how do I fix it?

I suppose the best place to start is when/where I think this problem started. Approx three to four weeks ago my thunderbird program stopped downloading emails from my server (Spectrum/RR). I say Approx because the problem sort of sneaked up on me without me realizing it was there.

I was using W7 and my hard drive was pretty much full and I was constantly getting messages that my email could not be downloaded due to lack of space. I started deleting stored emails and emptying the trash, which sort of kept me up and running for the past couple weeks. All this time my Gmail account continued to work as it should, downloading every email that was sent to me, but the Spectrum/RR account was spotty at best.

So today I fired up a new W11 computer for the first time. One of the first programs I installed was Thunderbird. When I attempted to set up an account using Spectrum/RR the process failed. I typed in all of the correct information, Name, Email, and Password but the account will not finalize. Instead, I continue to get the same message that the Configuration, Username or Password is incorrect.

I have since successfully logged into my Spectrum/RR web mail, so I know the username and password I am using is correct. I have also talked with Spectrum Technical support, and they have verified that what I am using to log in is correct.

I hope I didn't ramble on to much and someone can help me !

I've tried restarting and reinstalling Thunderbird but no change in this blockage since Tuesday. I am running Windows 11 Pro and Thunderbird 128.1.0esr (64-bit). Downloading chunks of email from Comcast and trying to import them doesn't work. Please advise as I am stuck. I will check your answers on Comcast server as I can not read them directly.

Hello! I recently got the update to Thunderbird 128 on my PopOS laptop via sudo apt update/upgrade. I don't know what the previous version was. Since the update, Thunderbird will spike my CPU to 120 - 140% (per command-line "top") if I have an interaction with it (e.g. reading and then deleting an email that was received) after the program has been sitting idle for several minutes. After a few minutes of loud fans, things calm down again so I presume Thunderbird is doing some sort of maintenance routine that completes successfully.

I do not have the global search index thing turned on. I did not change the default mailbox db idle time. I do have rather large mailboxes that are synced via SMTP, from three different providers. There are dozens of folders (not hundreds) containing thousands if messages (but not tens of thousands). Hopefully that gives an idea of scale .. I don't have a massive overload of untended email history but I do have a quantity of historical emails that the system has to deal with.

I followed the excellent directions online to obtain a profile during one of these high-cpu sessions. It is available at https://share.firefox.dev/4dAmyAz

Please let me know if there is anything further I can do to help diagnose this issue, such as generating more specific profiles. The high-cpu state is a pretty common occurrance now.

I have determined that the cause of these crashes is hardware acceleration being enabled, I can share more details if desired. It ran in troubleshoot mode then I added extensions one at a time, none of them crashed Firefox. upon turning on the hardware acceleration it crashes upon opening a PDF