1763535 - Drag and drop of attachments in new message OWA does not work

Status: RESOLVED DUPLICATE of bug 1763027

(Core :: DOM: Copy & Paste and Drag & Drop, defect)

Description

[Erik]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.4 Safari/605.1.15

Steps to reproduce:

For sending a new message I open https://outlook.live.com and the button "New message" type the message and would like to add some attachments (*.pdf, *.png).
The drag and drop of these attachments from my desktop into the message window is broken since FF 99.0 (macOS 12.3.1 Monterey)

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Firefox::PDF Viewer' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Calixte Denizet (:calixte)]

It's working correctly in Chrome and Edge on windows 11.

Comment 3

[Edgar Chen [:edgar] (OOO untils 09/01, slow response)]

The drag and drop doesn't work on FF90 either. I wonder if the site is changed recently.
Hi Erik, does the drag and drop work before, and now it is broken?

Comment 4

[Erik]

From my home-office I use FF daily as my standard browser at my Mac mini (macOS Monterey) with drag and drop when making new messages with one or more attachments. The drag and drop with outlook.office365.com still works OK with Safari and Microsoft Edge, it has only failed with FF90 since a few days.

I have tested the drag and drop from my MacBook Air 11" with Big Sur and FF98.0b8 and noticed that the drag and drop is also broken.
I am unfamiliar what or when Microsoft has possible changed their outlook.office365.com website.

Comment 5

[Edgar Chen [:edgar] (OOO untils 09/01, slow response)]

(In reply to Erik from comment #4)

From my home-office I use FF daily as my standard browser at my Mac mini (macOS Monterey) with drag and drop when making new messages with one or more attachments. The drag and drop with outlook.office365.com still works OK with Safari and Microsoft Edge, it has only failed with FF90 since a few days.

Thanks for these information!

Comment 6

[Edgar Chen [:edgar] (OOO untils 09/01, slow response)]

It seem like Outlook has done some changes and drag-and-drop is no longer on Firefox for adding attachments.
Hi Dennis, do you aware if there is any similar webcompat issue recently?

Comment 7

[malonnnnn]

Confirming this, as our entire office uses OWA and Firefox and every computer is affected, all running Windows 10.

The small little 🚫 symbol when trying to drag/drop, shown in the picture

https://i.imgur.com/GIZplfY.png

Comment 8

[Dennis Schubert [:denschub]]

(In reply to Edgar Chen [:edgar] from comment #6)

Hi Dennis, do you aware if there is any similar webcompat issue recently?

I'm not, and I couldn't find anything on webcompat.com. However, there is a post on Reddit reporting this issue, created three days ago. This might be some indication of the timeline.

I sent Microsoft an email, asking them if they recently deployed a change that could cause this. I'll also take some time trying to diagnose this when I'm back on Monday - so keeping the ni? active for now.

Comment 9

[Hsin-Yi Tsai (she/her) | away [:hsinyi]]

Looks a duplicate of Bug 1763027