Very slow..had over 500 messages, down to about 300. deleting takes forever. can't get new messages as it is stuck on sent messages which I am trying to delete. I just want to delete some of these sent messages, file some and have my current e mails pop up when I sign in. so frustrating. ---- removed phone# from public as per [https://support.mozilla.org/en-US/kb/forum-rules-and-guidelines Forum rules and guidelines]