JavaScript Info

In my add-on I have an HTML page that gets displayed upon install/update. Firefox obviously shows t… Read more Hide Location Bar From Firefox Add-on

I've been trying to add the highlighting feature to the Firefox DevTools debugger, so it will h… Read more How Do I Get Firefox Debugger Watch's Target Element?

I have a basic Google Chrome extension which needs to be ported to Firefox. I uploaded the .crx fil… Read more How To Test Firefox Plugin Locally

I am trying to create a key element dynamically for my bootstrapped add-on. Currently, I create a k… Read more How To Set An Xul Key Dynamically And Securely?

Anyone, help me, how to get Headers and PostData inside extension, using xpcom/something else? i ca… Read more Get Postdata As In Firebug

Say a webpage has a function like: function abc (){ return 'abc'; } How would I execute an… Read more Execute Function On Webpage?

I have recently converted a GreaseMonkey script of mine into a WebExtension, just to get a first im… Read more Firefox Webextension: How Do I Run Code Prior To Disable/uninstall?

Reference to the answer for my previous question here. Briefly: When an error occurs in a navigatio… Read more Webnavigation.ondomcontentloaded Url Filter Does Not Match Dns Error Url