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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)

I'm trying to copy a sqlite database from the data folder in my extension directory, to the pro… Read more Copy File From Addon To Profile Folder

i'm trying to follow this tutorial for creating a firefox addon that intercept when the url in … Read more Firefox Add-on Window.addeventlistener Error: Window Not Defined

I am porting a Chrome extension to FF using 'FF Addon SDK'. In the background script (main.… Read more Detecting Navigation In Ff Add Ons

I'm creating an incredibly simple Firefox extension. I used cfx init to create the directory st… Read more Referenceerror: Worker Is Not Defined In Simple Firefox Extension

This is my first time learning to build a firefox addon. I want store all the open tabs in a window… Read more Referenceerror While Using Sdk/tabs In Firefox Webextension

I'm trying to build an addon for LinkedIn but the contentscript is outputted in every frame... … Read more Firefox Addon Ignore Iframes

I am able to grab the URL of an image on a website, but I want to download the image to the local d… Read more Save Website Image Using A Firefox Addon (sdk)

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 creating (developing) a Firefox add-on and I need to find browser's user agent. The nav… Read more How To Find Out Browser's User Agent In Firefox Add On

Using the following example, I can get First paragraph from one URL i.e, ContentURL. ex - http://ww… Read more How To Load Multiple URLS In PageWorker For Firefox Add-on SDK?

I'm quite new to addon development with firefox. I picked the addon sdk for porting my chrome e… Read more Firefox Addon SDK: Ways To Display Options To User?