When I open a private window, appears this error message. It's not affecting in any way neither Firefox or the addon, I just was wondering if it is some kind of bug that can be fixed.
Firefox 41.0.1, Windows 10 Home 64 bits.
I have been seeing this error too for a while on previous versions and Firefox 43 (Windows 32 bit). I know Firefox 25.0.1 was working ok. The correct result should look like:
When I open a private window, appears this error message. It's not affecting in any way neither Firefox or the addon, I just was wondering if it is some kind of bug that can be fixed. Firefox 41.0.1, Windows 10 Home 64 bits.
![captura2](https://cloud.githubusercontent.com/assets/10410158/10266036/4ee24326-6a0f-11e5-89b0-e83f0ca9fc1b.PNG)