Forum Discussion
Is your Office 365's Outlook.com slow in Firefox web browser?
I have a client who said his https://www.usc.edu/office365's Outlook is slow in responding (a few seconds) and loading his e-mails, viewing attached files, clicking on print, etc. He has a working fa...
I narrowed down the slow Office 365's online Outlook's emails in Firefox v85. It involves with their attached Office files. Firefox's about:performance and about:memory show crazy high usages with connected online editors for Word, Excel, etc. Safari has the same issue, but not so bad as Firefox. Chrome had no problems at all. I even tried another macOS account, upgrading macOS Big Sur to v11.2, and refreshing Firefox. 😞