RSS feeds are fetching new messages when the application is offline.
1. Create a blog & feeds account.
2. Subscribe to a feed.
3. Configure the account to check on application startup and every X minutes.
4. Exit and launch Thunderbird in a way that keeps it offline, either by using the -offline command line switch or the settings in menu Tools > Options > Advanced > Network & Disk space > Offline > Offline.
Actual result: The status bar shows Thunderbird is trying to fetch the feeds.
Aryx is this a regression ?
Fixed by bug 254132.