Thunderbird is Slow - Comments

Had the same problem after downloading Java update. Disabled update & solved problem. 3 weeks later removed Java update.

Close TB, locate the file xul.mfl in your TB profile folder, delete it. It will recreate itself when TB starts again and doing this is harmless - it is a cache of sorts and can get bunged. May be the source of your problem if the java thig didn't work - don't know what java has to do with TB

I had this problem. I think Thunderbird is just simply a bad program in dire need of an overhaul. I uninstalled it and went back to Outlook.

I can confirm this issue as well. I have had it for a while.

It takes about 2 minutes to load my inbox file. I would like to go back to outlook but it looks like it will be a long process and I am in the middle of doing an assignment (using email :/)

Had a slowdown too and found that Compacting database speeds thing up considerably

I found that the theme CrosOver 2.0.2 killed Tbird's performance. Why? I dont know. Tbird would be choppy and lag doing the simplest of things like switching to a different folder. The solution is to use another theme. I went back to the default theme and all was well again. Maybe it's just my system but, fact is not all add-on's work well in all situations. Try eliminating the add-on stuff before hacking files.

I found a solution: http://kb.mozillazine.org/Inbox_stays_blank

This worked just fine for me.

Had the same problem about slow downloads and even slower uploads. I disabled my Panda antivirus and it solved my problem. It worked great in the past but it reached a point where it would interrogate every letter typed. I uninstalled Panda and I installed the free AVG antivirus and it works fine. Hope this helps.

I tried to compact, its working fine

Thanks Jason!! Disabling the TB talkback feature in add-ons solved my problem. I am no longer suffering from slow startups, slow opening emails, ghost windows after sending emails, etc. Seems my problem has been TB's very own talkback feature for reporting bugs was causing the hangs.