mozilla/pdf.js — pull request #1596 by yurydelendik (2012-04-23 20:07:15+00:00)
Title: Terminates browser processes; if killed waits for termination

Removes the following message:

```
Process firefox is still running. Killing.
Error cleaning up after browser at C:/Program Files (x86)/Mozilla Firefox/firefox.exe
Temp dir was c:\users\xxxx\appdata\local\temp\tmp1n6ipf
Error:
```