394572 - Placeholder/indicator for disabled plug-ins

Status: RESOLVED DUPLICATE of bug 391728

(Core Graveyard :: Plug-ins, enhancement)

Description

[Gids Goldberg]

<backstory> 
I was visiting Google Video, when I tried to view a video I was confronted with a big white space where the video should have been. It took me a while to figure out this was because I had earlier disabled the Flash plugin, however, there was no indication that a plugin wasn't being displayed. 
</backstory>

It would be great if there were a placeholder like there is for images where a plug-in has been disabled. 

Steps to Reproduce
------------------
1. Disable the Flash Plugin
2. Visit Google Video a few days later

Actual Result
--------------
Beffudlement (Big white space where the video should be)

Expected Result
---------------
Indication that disabled plugins were on the page.

Comment 1

[Dave Townsend [:mossop]]

Related to the notification about blocklisted plugins I think