Description of problem: The Firefox cannot download Flash-plugin.


Version-Release number of selected component (if applicable):


How reproducible: Opening a page which contains Flash animation or something 
like that.


Steps to Reproduce:
1. Start Firefox
2. Navigate to a Flash-based webpage
3. Click to the "install Flash plugin" button, which is appears if you've got 
no flash plugin in Firefox
  
Actual results: Firefox shows, plugin is under download, and than it has 
installed, but nothing changes (there already the "install Flash plugin" 
button and the website isn't correctly opened.


Expected results: Firefox need to download and install the plugins correctly. 
The installed plugins need to work without failure.


Additional info: