I am using Firefox 23 which I only recently updated to & I've notice on Instagram when I click on a picture it will open the picture in a new tab, but after doing this the original instagram tab will no longer funtion until I reload the page.
I changed, browser.link.open_newwindow to 1, which opens the image in the same tab.
It should open the image as an overlay; darken the page & open the image/video on top... if that makes sense. Much like how Facebook does. Facebook works fine though...
It works correctly on instagram, why is firefox not doing this any more?