Diễn đàn hỗ trợ Firefox

please advise how to update. My email server said that the current version I have will not support it. I have tried updating. Thanks.

bold text firefox browser. is corrupt. need to delete firefox and reinstall. I tryed but it wii not do it.

i lost my firefox browser. cant open it, it says its corrupt

need help on how to reinstall firefox

how do i update mozilla