Resize any Firefox Window

I sometimes come across a website that pops up a window with some video, chat or something, but its size is fixed, and it doesn’t fit in it, when opened in Firefox. I used to move that tab to the main window, where I’m able to resize it, but I don’t like doing that. I want to be able to resize that stubborn window in the first place, so I found a way to do just that.

It only requires three simple steps:

• write about:config in your address bar, and hit enter
• find dom.disable_window_open_feature.resizable
• double-click it in order to change its value.

Changes take effect immediately, so you don’t have to restart your browser or anything. Now, you can resize any window.