Changes

* [https://bugzilla.mozilla.org/buglist.cgi?query_format=advanced&product=MailNews+Core&product=Thunderbird&resolution=---&chfieldto=Now&field0-0-0=short_desc&type0-0-0=anywordssubstr&value0-0-0=meta+tracking&field0-0-1=keywords&type0-0-1=substring&value0-0-1=meta&field0-1-0=short_desc&type0-1-0=nowordssubstr&value0-1-0=%3Cmeta+meta- Meta bugs]

* OS specific: [https://bugzilla.mozilla.org/buglist.cgi?query_format=advanced&product=MailNews+Core&product=Thunderbird&resolution=---&op_sys=Mac+System+7&op_sys=Mac+System+7.5&op_sys=Mac+System+7.6.1&op_sys=Mac+System+8.0&op_sys=Mac+System+8.5&op_sys=Mac+System+8.6&op_sys=Mac+System+9.x&op_sys=Mac+OS+X&chfieldto=Now&field0-0-0=short_desc&type0-0-0=anywords&value0-0-0=mac+macintosh+osx+os-x&field0-0-1=short_desc&type0-0-1=substring&value0-0-1=os+x Mac], [https://bugzilla.mozilla.org/buglist.cgi?query_format=advanced&short_desc_type=anywords&short_desc=win32+%5Bwin%5D+%5Bwindows%5D+%5Bw2k%5D+windows+%5Bw98%5D+%5Bwin98%5D+%5Bwinme%5D&product=MailNews+Core&product=Thunderbird&resolution=---&op_sys=Windows+95&op_sys=Windows+98&op_sys=Windows+ME&op_sys=Windows+NT&op_sys=Windows+2000&op_sys=Windows+XP&op_sys=Windows+Server+2003&op_sys=Windows+Vista&op_sys=Windows+7&op_sys=Windows+CE&op_sys=Windows+Mobile+6+Standard&op_sys=Windows+Mobile+6+Professional&chfieldto=Now Windows], [https://bugzilla.mozilla.org/buglist.cgi?query_format=advanced&product=MailNews+Core&product=Thunderbird&resolution=---&op_sys=Linux&op_sys=Linux+%28embedded%29&chfieldto=Now&field0-0-0=short_desc&type0-0-0=regexp&value0-0-0=.*ux+&field0-0-1=short_desc&type0-0-1=anywordssubstr&value0-0-1=ubuntu+centos+redhat+&field0-0-2=short_desc&type0-0-2=anywordssubstr&value0-0-2=font+color+gtk+window+menu+gnome+kde+lib&field0-0-3=short_desc&type0-0-3=regexp&value0-0-3=%5B+%5Dx.* *ux] (may need adjusting to meet your needs)

* [[Thunderbird:QA_Days|Past Bugdays]]