Comment 88 for bug 109943

I really wonder why even after 11+ years this is still not fixed and
reporters like me have been bugged multiple times with needless Needinfo requests?!?

As I wrote several times over several years at several places in this bug tracker:
The problem is easily reproducible with any TB version (meanwhile including 78.4.2.).

Again: just enter an IP address such as 1.2.3.4 as the server name/address.
Then try fetching emails. Until this timeouts,
the progress bar moves forth and back with significant CPU load (10% of one core on my current Linux machine).