better, easier logging/diagnostics for Thunderbird starting list: bug 450631 We should include log4moz as a JS module for front-end and extension work bug 451283 Adding log4moz.js to toolkit Bug 103865 Improve [filter] Logging - add archive capability Bug 386218 make debug/trace logging circular and automatic Bug 229173 Better access to POP3/SMTP logging bug 174839 Improve Filter log display format bug 182481 Message Filter Log should have a search button bug 286723 need import error log file bug 47864 Include server response in NNTP logging bug 182459 include port number in "SMTP Connecting" log message Bug 311632 Get LDAP change log replication working again. based loosely on 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=nowordssubstr&value0-0-0=dialog&field1-0-0=short_desc&type1-0-0=anywords&value1-0-0=log+logs+logging&field1-0-1=short_desc&type1-0-1=substring&value1-0-1=diag

(In reply to comment #0) > Bug 311632 Get LDAP change log replication working again. Nothing to do with this bug - its a LDAP method of replication.

For what it's worth, with jsctypes and some clever abuse of API, you can dynamically enable logging with the UI. Unfortunately, it all goes to one file, and NSPR doesn't log which module is logging, so you can't separate log files. Here is the code I used: Components.utils.import("resource://gre/modules/ctypes.jsm"); var nspr = ctypes.open("libnspr4.so"); var prlog = ctypes.StructType("PRLogModuleInfo"); prlog.define( [{"name": ctypes.char.ptr}, {"level": ctypes.int}, {"next": prlog.ptr}]); var func = nspr.declare("PR_NewLogModule", ctypes.default_abi, prlog.ptr, ctypes.char.ptr); var setLog = nspr.declare("PR_SetLogFile", ctypes.default_abi, ctypes.int, ctypes.char.ptr); setLog("/tmp/foo.log"); var lm = func(""); while (!lm.isNull()) { if (lm.contents.name.readString() == 'nsSocketTransport') lm.contents.level = 5; lm = lm.contents.next; } nspr.close(); And, lo and behold, FF started logging nsSocketTransport to /tmp/foo.log! This does require a version of ctypes with structure support, which 1.9.2 does NOT have. I'm not sure which bug is actually asking for UI for logging, but if anyone wanted to hack a control up for trunk TB, this should be doable...

references: * https://wiki.mozilla.org/MailNews:Logging * https://addons.mozilla.org/en-US/thunderbird/addon/loghelper/ * https://addons.mozilla.org/en-US/thunderbird/addon/tbtracer/ additions: bug 540763 - Add logging to imap retry code. Bug 669212 - SMTP Log does not contain body of email Bug 518768 - Rationalize autosync logging Bug 257810 - RFE Way of dynamically turning on and off pr logging (duped to bug 237326) Bug 609675 - output version information to nspr log on Thunderbird startup or start of logging

n.b. - bug 1233881 landed for gecko 46 - Support dynamically setting log levels at runtime via prefs - Bug 881389 - (OneLogger) Improve Gecko's logging story' - Bug 1174785 - Add a LogModule replacement for PRLogModuleInfo - Bug 1174972 - Switch out mozilla logging backend -