Why does Thunderbird freeze while I'm typing an e-mail?
Thunderbird freezes while I'm typing text in the body of an e-mail, both randomly and after I've typed 40 or so characters. The process pins one of my CPU cores at 100% for 5-10 seconds, then drops the last 15 - 20 characters I've typed when it resumes.
Maybe there's some buffer setting that needs adjsutment but it's hard to imagine overloading an input buffer and triggering a freeze / core pin with a few dozen characters. This doesn't happen with any other application, and obviously shouldn't with Thunderbird.
Increasing mail.db.idle_limit and mail.db.max_open had no effect.
Any thoughts would be most appreciated.
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Have you set up to periodically auto save as a draft ? If using Imap then it may be auto saving and also trying to synchronise with server at which point you may have your Anti-Virus product getting in on the act and scanning the file.
Start by accessing Anti-Virus product and stop it scanning anything in the thunderbird profile name folder and perhaps switch off email scanning.
BTW what Anti-Virus product are you using?
Then you see if everything is much smoother.