The culprit appears to be the "nsIURI ** pLivemarks" used to hold the array of URIs returned by GetPagesWithAnnotation.

On my test machine/profile, this patch stopped a leak of all 3 nsSimpleURI references when initializing the nsILivemarkService.

Comment on attachment 218228 [details] [diff] [review] Adds GetPagesWithAnnotationCOMArray method to nsIAnnotationService API and changes nsLivemarkService::Init to use it The other option would be to NS_RELEASE each array item, but it's easy to mess that up if you ever return early. This way is better.

Landed on branch & trunk.

Bug 451915 - move Firefox/Places bugs to Firefox/Bookmarks and History. Remove all bugspam from this move by filtering for the string "places-to-b-and-h". In Thunderbird 3.0b, you do that as follows: Tools | Message Filters Make sure the correct account is selected. Click "New" Conditions: Body contains places-to-b-and-h Change the action to "Delete Message". Select "Manually Run" from the dropdown at the top. Click OK. Select the filter in the list, make sure "Inbox" is selected at the bottom, and click "Run Now". This should delete all the bugspam. You can then delete the filter. Gerv