Semua Produk Community Forum

I cannot get mail or send it from any of my accounts in Tbird. This just suddenly happened today November 13th, 2026 A day or so ago, the new update was installed but, this just happened TODAY so all was well for those days prior! I'm using Windows 7 and the update was 115.18.0esr (32 bit) Anyhow, I did what it said and deleted the cache and changed the number of cache from 5 to 1 but, nothing changed after I closed and reopened the program. So, I went to google which said that this is a known issue with this update so, I should uninstall this version and download and downgrade to the previous version. But, no dice. Still get the error message with 115.18.0. What do I do now?

Firefox crashes several times a day with various different OOM errors.

This is the only machine which does this, the rest of my machines with the exact same configuration and other factors don't.

Just This Machine.

So how do I troubleshoot this machine.

Note: Does not matter if I'm in troubleshooting mode, it will crash abruptly.

Managed to delete my primary default email account. still have secondaru. therse are both gmail accounts that I access in Thunderbird. I lost everything for my main account. But I have been trying to add id again and at least start using iut again. I get so far tnd then I get windows saying that I have to log in using gmail/google accout. I have gone on the gmail phone app and changed that. I have gone into google aqccount on PC and changed that, but it still keeps happenng. I never had to log into google before. When I am able to look at my inbox there is nothing there the new messages are not being omported and I actually seem to have no real access to the account. Suposedly Thunderbird is linked to my google account, but I have no idea what the heck to do or how to do it evidently. Can anyone help? Is there anyone I can speak to on phone to walk me through things?

Where do extensions generally store their data. EG Tab Session Manager. In this case there is a tab for storing backups but nothing is said about where the basic data is stored.

I assume it's somewhere in the profile info, but the files generally have impenetrable names. Most of the extension devs aren't easy to contact.

MacOS 15.8.3. Firefox 160.0

After clearing data and reinstalling now I can't get past adding an account because the outgoing server fails. I'll include photos of what's Happening it says smt authentication is disabled on account. I'm using an Outlook email.

My system • Windows 11 on a Dell laptop. • Firefox Version 157, my default browser. • Norton 360 Standard. • Two Firefox profiles; the warning appears in both. • Firefox Troubleshooting Mode does not eliminate the warning https://support.mozilla.org/en-US/kb/sslkeylogfile-warning?utm_source=chatgpt.com

What I have observed The warning appears on Firefox network-error pages, including when the internet is disconnected or I enter an incorrect URL. A particularly reproducible example occurs after I successfully log in to Kotak Net Banking and select Help → Raise a Query. Firefox then displays a connection/privacy warning associated with the embedded page. I do not see the same behaviour in Chrome or Firefox Private Browsing when performing the equivalent Kotak steps. Troubleshooting already completed 1. Norton Safe Web HTTPS scanning was disabled and re-enabled without resolving the issue. 2. QUIC/HTTP3 scanning, WebSocket Protocol Scanning and DNS/DoH scanning were individually tested without resolving it. 3. Firefox Enterprise Policies are inactive. 4. I found no SSLKEYLOGFILE entry in either Windows User Variables or System Variables. 5. Norton and Dell malware scans found no malware. 6. The warning also occurs when I connect through a mobile phone hotspot rather than my usual BSNL connection. Questions for Mozilla's technical contributors 1. Does this warning establish that Firefox detects SSLKEYLOGFILE, or could another mechanism produce the same message? 2. Can the variable be inherited by Firefox from a parent process or injected into its running process even when it is absent from the Windows User and System Variables? 3. What is the safest way to identify which process or security product is setting it on Windows 11? 4. Is there a known interaction between Firefox 157 and Norton 360 Standard that could explain this behaviour? 5. What evidence should I collect to distinguish a Norton issue from a Firefox issue without disabling security protections or modifying Windows settings? I am not looking to disable security features indiscriminately. I want to identify the actual cause and, if Norton is responsible, determine the precise setting that needs attention. I would particularly appreciate a response from a contributor with Windows networking, Firefox TLS or security-software diagnostic experience. Thank you.

I have done a clean install of firefox on my new pc and I cannot access the Rcgroup forums (very very slow to access if at all) it works fine in Google Chrome and brave browsers.

For years I used Firefox to collect information from websites by copying text from a page and pasting it into Word or OneNote. The text would appear and there would also be a link to the particular page. Now, instead of a link to a particular page, Firefox only includes a link to the site's home page. To get around this, one is forced to perform 2 tedious operations instead of one easy one: You must highlight something on the page, copy it and paste it into Word or whatever, then go back and perform "Copy Link to Highlight" and then go back to Word and paste the page information into the link creation window. Is there a workaround for this or do I have to go to Chrome or Edge to get what Firefox used to do perfectly?

Hi everyone,

I have been using a OTENET (Cosmote, Greece) e-mail account (apel50@otenet.gr) in Thunderbird on a laptop for years. But since a couple of weeks I have a problem with outgoing mail. No changes in configuration.

=> Incoming mail: Works still perfectly via POP3 (mail.otenet.gr, port 995, SSL/TLS).

=> Outgoing mail: Consistently fails on mailgate.otenet.gr. Tested on port 465 with SSL/TLS and port 587 with STARTTLS, as well as via different network connections/hotspots, and just to be sure also on smtp.otenet.gr. The following error:

"Verzenden van het bericht is mislukt. Er is een fout opgetreden bij het verzenden van e-mail. De mailserver antwoordde: Reject, id=18742-18 - SPAM. Controleer het bericht en probeer het opnieuw."

I have already contacted Cosmote support, and they verified that the account status is completely fine and that smtp.otenet.gr is indeed the correct and active outgoing server. Even a simple, plain-text test email with a normal sentence gets rejected immediately by their server-side filter (amavisd / SpamAssassin).

Could this be related to a specific header, authentication method, or sender-identity mismatch in Thunderbird when communicating with modern Telekom/Cosmote SMTP infrastructure? Any advice on what to check would be greatly appreciated!

Warm regards, Anna

When clicking the "cloud icon" ("get all new messages") I would expect it to check all accounts. But it only check the account that is currently displayed (not the others). Is this a known bug? Is there a setting for this?