Ubuntu
firefox package

  1. Bug #89381 (ff-gtkfc)
  2. Comment #38

Comment 38 for bug 89381

Revision history for this message
Fabián Rodríguez (magicfab) wrote :

Same problem in Maverick using the latest Adobe Flash for 64-bit.

This seems to be website-specific.

Try to upload an image to Flickr with Flash enabled - no preview

Try to upload an image to your Launchpad profile with Flash enabled - preview is OK.

It looks like websites can override the OS upload dialog with their own or something along those lines.