User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.134 Safari/537.36 Steps to reproduce: I wrote a new message to someone in my address book (used the autocomplete in the address field). Name/email address was correct. Actual results: Upon sending the message, TB changed the recipient to another name/email close to that of the original one. Noticed it as I (and my wife who also uses TB) started getting replies from those unintended recipients. Issue appeared in TB 31.5 and later version (I have not tried the latest 31.8 version). I have reverted to TB 31.3 version until bug is fixed. Expected results: Email should have gone to the right recipients.

Benoit, pls look at bug 1152517 of which this is most likely a duplicate. Pls confirm if that applies. Otherwise there are a few other listed in the see-also field of bug 1152517. Fixes will mostly land on the newest versions; it's not recommended to remain with outdated versions.

(In reply to Thomas D. from comment #1) > Benoit, pls look at bug 1152517 of which this is most likely a duplicate. > Pls confirm if that applies. > Otherwise there are a few other listed in the see-also field of bug 1152517. > > Fixes will mostly land on the newest versions; it's not recommended to > remain with outdated versions.

Hi, Yes, this seems to be the same bug. Looking forward to the fix as I won't use any new versions until it is no longer an issue. Thanks all for producing a great piece of software. Benoît

Thanks for the update