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Since my last FF update (140.0.1), every time i open FF it asks me to set FF as my default browser. But when i click the link, the choose default browser does not show FF as an option, just Google Chrome or Internet Explorer. How do i set FF as my default browser? Thanks. I'm using Win10 ver 22H2 19045.6809 on an Asus laptop, if that has any bearing.

Hi,

I'm using a google provided email (but it's not gmail) which is provided by my school. When I try to set up my email, everything works fine, Thunderbird detects the settings. When I try to log in I get the error message "Unable to log in at server. Probably wrong configuration, username or password". If I go though the settings the authentication method is "normal password" when it should be "oauth2" but that option is missing. The pop-up to log in to my Google Account to authorize the app does NOT appear no matter what.

I've had this issue multiple times in the past (as I change schools) and I was able to solve it once. In my Windows install I changed some flag in the Config Editor (and I forgot which) and the following time I tried to add the account the Google authentication pop up appeared. Do note that the outlook app (new one and classic) sets up the account just fine without me having to configure or change anything.

So right now I have Thunderbird able to access that account on Windows, but I can't get my install in Nobara (Fedora based) to do so because (I think) the Google authentication pop up doesn't open so that I can go to the account and allow the specific Thunderbird install to use the email.

I've also tried 4 or 5 other email clients available in Flatpost and none are able to trigger the Google pop up thing. I don't think the issue is the OS because I had the same exact issue with thunderbird on Windows until I changed some flag in the Config Editor.

I would appreciate if anyone could help me out, i've spent hours scouring the internet for options and (unfortunately) nothing has worked so far and I've been unable to find the instruction with the flag I need to follow that fixed my issue the other time.

I transferred to a new Apple Mac Book Pro in Nov 2025. Downloaded and Installed thunderbird version 144.0.01. No problems. Did updates and started to encounter issue with sending mail. Last updated version was 147.0. Had to go back to version 144 to get a properly working Thunderbird.

Is there a bug with version 147 for Apple Mac Sequoia that means you cannot send more than one email at a time from pop3 accounts? I send an email, and then have to quit Thunderbird and re-open if I want to send another email. I have done a lot of testing and checking over the last few weeks to try and get Thunderbird to work properly, but nothing worked. Plus a date edit bug / feature for tasks?

I have several accounts, all pop3 apart from 1 Gmail account. No matter which account I start from, if I want to send subsequent emails from a pop3 account, I have to quite Thunderbird. No matter how long I wait to send the email. I tried saving the email as draft, and send later. Does not work. I did not make a note, but I think in my testing I may have been able to send more than one GMAIL email - it is IMAP. I know I did send 1 email from my gmail account, and then tried one of the pop3, but was not successful. At all times fetching mail has not been a problem.

I did all the standard checks which did not make any difference: the server settings; addons disabled; virus checker disabled. Removed an account and re-added; deleted SMTP server settings and re-added. Proxy settings; and so on.

On my old mac running version 128.14 no problems at all. I compared settings. Could not see any differences.

On the new mac, created a new user, and new thunderbird profile. Added 1 pop3 account only. The problem was exactly the same. So it was not a profile issue.

Decided to revert back to older version 144. PLEASE could Mozilla add a facility to Thunderbird to allow you to use existing profile rather than going through the operating system to get it to use my existing profile. I did get the old 144 version to use my 147 profile. After testing yesterday and today it all appears ok. I can send more than email at a time both from the same account, and from different accounts. What I do notice is it does seem to be slow on making the connection on some accounts. Most of the accounts are from the same host but the connection speed for sending is variable across the accounts from the same provider. My email is purely the words testing and testing in the body so not large. Is that to do with the space I have assigned to email mailbox at the provider side?

One other issue with 147, and do not know if it is connected or a new feature of 147 and that is not being able to directly amend dates in tasks? In the newer versions of Thunderbird I found that I can only amend the date of a task by using a popup calendar and choose the date. In version 144 I can now amend the date of tasks by typing in the date field. Is it a feature / setting of 147 or a bug?

I recently updated to 147 and my email is not working efficiently. 1) Thunderbird will not open again after closing 2) Email header populates but message will not 3) All emails are in Inbox but none populate email message.

Help!

after a mac update I can no longer get to attach e-mail addresses to outgoing mails - the address is in the system but willnot attach and therefore i cannot send e-mail

good day....ii hope someone can help. the other day i was accessing my yahoo account spam folder and by accident, i deleted the spam folder instead of emptying it. the spam folder is now sitting in the trash and i'm unable to remove it from there. when i log into my actual yahoo account, the spam folder is where it's supposed to be and not in the trash. i tried removing the yahoo account from thunderbird and reinstalling it in hopes that it would rectify the problem, but it hasn't. does anyone have a solution?? i would greatly appreciate any help you can offer. thank you for your time...mike s

Firefox was using GOBS of CPU, so I killed the master process and relaunched, but after launch I couldn't get any pages to finish loading. I then hoped to copy URLs from tabs and paste them into Floorp (which is working fine, as is Chrome), but I couldn't even snag the URLs (dominated by YouTube pages). I ran a full-system virus scan, finding nothing. The most recent Windows-11 update on 2026-Jan-15 isn't recent enough to be a likely causal factor. Firefox has about twice as many extensions as Floorp, but it was running fine until late yesterday (it's now after 3AM). I couldn't get the extensions page to load, so I've attached a screenshot of C:\Users\Mike2\AppData\Roaming\Mozilla\Firefox\Profiles\oa7ou5xk.default-release-1715337056307\extensions There are several other profiles, but there's very little in them (one profile with a times.json & several profiles containing a parent.lock file)

Processor Intel Core i9-9980HK CPU @ 2.40GHz (2.40 GHz) Installed RAM 128 GB System type 64-bit operating system, x64-based processor MSI GT75 Titan 9SG

If I reinstall, will I lose all of my tabs?

I’m noticing a strange performance issue with my website: Wildiferemovalpro

On Chrome and Safari, it loads perfectly fine. However, when I try to open it in Firefox, the loading spinner just keeps going, and the "Time to Interactive" feels significantly longer.

I’ve already tried:

Clearing my Firefox cache.

Disabling my extensions.

Checking on different machines.

Is anyone else seeing this? I suspect it might be a script or a specific CSS rendering issue unique to the Gecko engine. Would love it if someone could take a quick look and let me know if they see any red flags in the console.

Hallo beisammen,

bei Favoriten (alle Tabs) speichern fällt mir jetzt erst auf, dass die Tabs, die ich in Sammulungen zusammengestellt habe, nicht mit gespeichert sind. Dadurch sind jetzt nach einem massiven Absturz von Mozilla genau diese Tabs nicht zu finden, das habe ich beim Speichern nicht bemerkt. Kann ich da jetzt dennoch irgendwie drankommen? Über andere Wege, auch das Prozedere mit sessionstore/recovery, hat es nicht geklappt (und synch. mache ich bewusst nicht).

Für die Zukunft beim Abspeichern aller Tabs als Favriten - muss ich alle Sammlungen öffnen, damit es alle in den Ordner aufnimmt?

Danke für guten Rat :))

For about the past 10 days or so Tbird has been presenting me with a request for my user name and password for, i am assuming, inclusion as an added account. They want

The problem is that in have no idea who caldav is or where they got my link to Tbird. My concern is that this may well be malicious. They want me to authenticate with username and password. What user name and what password?

Does anyone in the forum know what this is all about and how i can get them permanently excluded? With all the fake / criminal challenges on the net these days, i am very nervous (77 years old).

Any help would be really appreciated. Thank you

Dear

This website cannot use . https://book-myanmar.crane.aero/JSF/RezvEntry.xhtml?faces-redirect=true#!

My cloud account is nearly full but when I go to update the account or purchase more space I am blocked. The authenticity of going from Mozilla Firefox to cloud is blocked because it cannot confirm it identity. I at the point of not being able to use my computor due to being blocked. Can anuone tell me how to get through?????

ホームページにヤフージャパン以外にいくつかのページを設定しています。 ヤフーを見ているときにホームボタンでトップページにもどると他のタグのページも全てまた新しく立ち上がってどんどんタグが増えてしまいます。 見ているページだけ初期化する設定に出来ませんか。 Microsoft　edgeは出来たのですが、出来ればfirefoxに乗り換えたいです。

In other videos I've watched I was able to adjust the audio playback speed from 1.0 (normal speed) 1.5, 2,0,2.5. and slow it down with .5. I have not been able fl find this for this video. It allows you to save some time by speeding up the audio. It does get harder to keep up as you speed up the audio to the highest setting.

I find a website I like, I add to bookmarks, chose a location, add some tags and save.

Next I look for bookmark to verify it saved and it is not in folder it was saved into.

I open Bookmarks and search for this newly created bookmark and it is not in the correct location, it is in another folder, or past the folder in a tree that is not seen under the drop-down up under address bar, only through searching via Bookmarks. After I searched and I had found it, I chose open in folder, saw its position and dragged it to the folder and position I wanted it to be, then close the search, use the drop down folders in bookmark bar and not there. ??

Go back to Bookmark search, find it and it is shown to be where I last dragged it, but it is not there unless I search for it.

So not sure what is going on with bookmarks, but after saving they are not saved where I directed them to save and I am losing my bookmarks to some void in my bookmark manager.