Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Firefox loses file extention when dragging and dropping to desktop on Mac

  • 5 replies
  • 1 has this problem
  • 7 views
  • Last reply by Mkll

more options

When I drag and drop image files from Firefox to my desktop (png, jpg, etc.) the extension gets lost and I ave to manually add it back on to the file name. This occurs with Firefox 57 on both Yosemite and Sierra.

Note: it could be other files types as well, but I have only tested with image files.

When I drag and drop image files from Firefox to my desktop (png, jpg, etc.) the extension gets lost and I ave to manually add it back on to the file name. This occurs with Firefox 57 on both Yosemite and Sierra. Note: it could be other files types as well, but I have only tested with image files.

All Replies (5)

more options

Known issue is being looked into:

Here is a work-around: 1. Click on the file image on your desktop 2. Go to finder - click FILE 3. In file drop-down click on - OPEN WITH - choose FIREFOX FIREFOX

A new Firefox window opens with the image. Drag the image to desktop and it will be visible showing thumbnail image like it did in the past. And you can view it in preview.

more options

Glad it's being looked into! Thanks

more options

If this solved your problem, mark as solution.

more options

It did not. You said the problem was being looked into.

more options

My apologies, while the problem IS being looked into -- you can use the workaround.