JavaScript Frameworks

hi im pretty much a beginner.I need some help turning this script in an browser extension for firef… Read more Convert Javascript Into Firefox Extension

I'm trying to add a context menu to a widget This is the menu: var widgets = require('sdk/w… Read more Can I Add A Context Menu To A Widget?

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'm writing a firefox addon using jquery. I added an iFrame to a page and filled it with anothe… Read more How To Know When The Dom Of An Iframe Is Ready Again After Changing Its Content?

I am successfully writing to an Excel file, using javascript from my FireFox extension. I can get t… Read more Biff5 - Excel - Workbook Stream Problems (corrupt File)

I am developing a Firefox addon and I was wondering how to get the contents of the search box in th… Read more Getting The Contents Of The Toolbar Search Box Using The Mozilla Firefox Add-on Sdk

I'm using firefox addon builder. Running this code errors with 'callback is not defined'… Read more Jsonp Callback Error

I'm one of the developers of TryAgain, a Firefox add-on, that displays a custom error page when… Read more Creating A Xul Button Gives "component Failure Code"

I am calling winscard functions using js-ctypes for a Firefox addon. SCardEstablishContext works p… Read more Error While Calling Scardlistreaders In Js-ctypes

I'm experimenting firefox webextensions. I'd like to make HTTP requests using the fetch API… Read more Fetch Api Does Not Work In Webextensions

I within a panel and I want to get the current browser URL. Nothing so far works. Here's what I… Read more Getting Current Browser Url In Firefox Addon

I am trying to make a button in the Firefox Add-on Builder that will change the URL that the search… Read more Firefox Addon Builder Preferences-services Not Working For Me--why?

I'm a newbie trying to do a simple HTTP post in JS within a Firefox extension.. This isn't … Read more Http Post In Javascript In Firefox Extension

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?

Below is my code for FF Extension monitoring browsing behaviour. I can't access trim method fro… Read more Cannot Access Object's Methods From Within Event Handler Using `this`

I have developed an add-on for Firefox and Chrome. It has content scripts. I want to access them in… Read more How To Access Add-on Content Script In Firefox Console?

I'm writing through a socket from a FF add-on to a java server. I write several requests and th… Read more How To Flush A Socket In My Code

I am writing what should be a fairly straightforward firefox extension. But this is my first firef… Read more How Does Javascript Execution Context Work In Firefox Extensions With Multiple Windows?

I am working on creating a Firefox Add-on SDK extension that would set custom cookies (two cookies … Read more How To Set Custom Cookies Using Firefox Add-on Sdk (using Services From Firefox Add-on Sdk)

How to dynamically modify CSS rule set (e.g. with a class selector) from JavaScript within Firefox … Read more How To Dynamically Modify Css Rule Set (e.g. With A Class Selector) From Javascript Within Firefox Add-on Using Xul, Sdk Or Webextensions Techniques?