This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

OWA (Outlook Web Version) Drag and Drop Not Working with Firefox 99

more options

Since the latest Firefox 99 update, when I drag and drop an attachment into an Outlook Web Access email on Firefox browser, it does not work (can do attachments through the attachment button, but this takes much more time to click, locate file, and attach). This process continues to work on my other browsers (Safari, Chrome). This is very frustrating (making me consider switching my primary browser. Any help with this would be appreciated.

Since the latest Firefox 99 update, when I drag and drop an attachment into an Outlook Web Access email on Firefox browser, it does not work (can do attachments through the attachment button, but this takes much more time to click, locate file, and attach). This process continues to work on my other browsers (Safari, Chrome). This is very frustrating (making me consider switching my primary browser. Any help with this would be appreciated.

All Replies (2)

more options

Also, should have mentioned I am running macOS Big Sur 11.6.4 on two different MacBook Pros (one personal and one work). This problem exists on Firebox on both.

more options

Hi, this started Monday morning (before the release of Firefox 99). There is a bug on file with Mozilla, and the developers asked Microsoft to look at it. So far, no explanation for the problem, and no obvious workaround.