Virtually a must-have due to Mozilla's stupidity, thinking a combined stop and reload button is a Good Thing(tm). You want to stop a page from loading because it's taking too long. Your brain has committed to clicking stop/reload, and your pointer is poised over the button. As your finger is flexing, the page finishes loading, the widget changes to "reload", and gets clicked. Now you have to wait AGAIN. This widget makes so much more sense, it means ONE thing: stop, not MAYBE stop, MAYBE reload as Mozilla envisions it.

Did not add the old "stop page from loading" button

Doesn't work anymore. No stop button icon appears on the toolbar

Dont work. Installed it but never a button, Not ricght, left, not in the menue, not in the options.

I cant understand why firefox delete this buttons.

Thank god for this — ridiculous that Forefox decided to dumb down and remove this original button that existed way back till suddenly Firefox's paid nerds decided to nix it without user consent

Great! It's practically invisible with a dark theme though. Any way to change the icon? Thanks.

This is good.Well done.Thanks.

Great job, man! No more this stupid 100-in-one button.
Hate when new version of FF breaks everything.

Firefox 57 is slowly becoming more useable! Finally! Separate Stop and Reload buttons! THANK YOU!!!