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javascriptfirefoxcustomization

Create button on Firefox toolbar to execute JS

I need the toolbar button to execute my custom JavaScript code in Firefox. Currently I just copy-paste this JS into console, but it is annoying. What is the best way to create such button?

Solution

  • Use a https://en.wikipedia.org/wiki/Bookmarklet.

    Example - create a shortcut to any site on in your browser and replace the URL address with similar code:

    javascript:(function(){ alert('Hello!'); })();