Lately Thunderbird is very, very slow to send or receive email from POP3 Gmail. I've noticed the slowdown a while ago, and hoped that a reinstall would fix the issue. But it does not. I am using a fresh snap install of 115.9.0 on a fresh Ubuntu 24.04, with calendars disabled. This is what happens: * When checking or sending mail, Thunderbird spins up a single CPU core for 130 seconds. * The CPU core spins only if Thunderbird is on foreground (not if in background or minimized). * I can see on the Network Monitor that until 130 seconds have elapsed no network request are made. * After 130 seconds of waiting, some requests to google are made and mail is actually checked in a couple of seconds. Seems that Thunderbird waits for something that never happens, and actually checks mail only after something times out. How can I fix this? Do you have any suggestion of what to try? Regards, José