javascript magazin

I am trying to override the built in method CanvasRenderingContext2D.getImageData(). I would like t… Read more Overriding Canvasrenderingcontext2d.getimagedata()

I have a simple extension where I use Cu.import to import a JavaScript code module. But, when I loa… Read more Unable To Use Components In Webextensions: Get "referenceerror: Cu Is Not Defined"

I've developed a Chrome extension, and trying to port it to Firefox using Firefox WebExtensions… Read more How To Get Openertabid In Firefox Webextensions?

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

I'm making an extension which allows users to store proxy servers with auth credentials (user/p… Read more Force Proxy Re-authentication In Chrome Extension

I am currently creating a WebExtension in which I register a listener on the web requests being mad… Read more Update Webextension Webrequest.onbeforerequest Listener Url Settings From Separate Script

I'm running web-ext lint and getting back a few errors like this: UNSAFE_VAR_ASSIGNMENT Unsafe… Read more Best Way To Purge Innerhtml From A Firefox Extension

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