The thing I enjoy,
When I go to an image it is fit to the page. Basically the one thing I use the app for.

The thing I hate,
When I have the browser set to full screen, my navigation bar won't drop down. I have to either press F11 or close firefox completely, which is very frustrating.

I am a photographer and I have the canon 90D, so I work with very high resolution images, all the time. If not mine, its others. Having the images fit to screen is so very convenient...

I know it is this app because all I have to do is disable the app for the full page option to work perfectly and I have my drop down menu....

It drives me nuts...