Development

Topic	Replies	Views	Activity
Get started with Firefox extension development Extensions provide a simple and powerful way to personalize your browsing experience. If you know JavaScript, CSS, and HTML, you can build your own. If you are brand-new to add-on development, you can get started by che…	3	782	June 6, 2021
Extension development tools developer-tools Hi all, I’m excited to share some tools that community members have recently created to help with extension development. If you’ve built something that could be helpful to others, please let us know by replying to this …	7	6428	June 3, 2021
About the Development category	1	2556	May 21, 2015
New download UI experience vs. browserAction.setIcon()	6	133	June 16, 2021
Angular CSP error ('unsafe-eval')	3	119	June 14, 2021
Extension script that runs on all tabs - Notification system	10	137	June 8, 2021
How to connect via web socket to website not specified in the page's CSP?	2	61	June 8, 2021
Content scripts and websocket	9	1117	June 8, 2021
getSecurityInfo for PWAs?	1	63	June 6, 2021
Developer Support? Options/Preferences Tab Suddenly Blank issue	4	118	June 5, 2021
7 Browser Extensions that Make Money (by Indie Developers)	1	70	June 3, 2021
How to prevent extension popup window from showing in Recently Closed Windows menu	2	91	June 3, 2021
600% Volume Booster extension with malicious code	10	233	June 2, 2021
Fetch local ip adress	4	137	May 31, 2021
Is there a way to read/write tab history?	2	129	May 28, 2021
WebExt API to stop a loading tab?	2	111	May 28, 2021
How do I profile an extension	1	63	May 28, 2021
How do you detect dark mode in about:addons?	3	119	May 27, 2021
Adding custom python library to pyodide	2	124	May 21, 2021
Adding a Privacy policy	6	345	May 20, 2021
How to make the input range slider listen for events on my extension ? trying to make a brightness reducer here	2	99	May 19, 2021
Read content of a page and show it in popup (Hi I am new)	2	123	May 16, 2021
Add the possibility to modify extensions.activeThemeID either as a WebExtension expirment, or under browser.theme	3	144	May 13, 2021
A little Help For Beginner	3	123	May 13, 2021
Adding more than one search engine from add-on	2	126	May 6, 2021
How to get the x and y coordinates of mouse click on browser action context menu item	2	146	May 6, 2021
Why doesn't my i18n work?	4	157	May 5, 2021
BackgroundScript > ContentScript keeps giving a 'key length' warning and not running any code	5	129	May 5, 2021
WebExtension: Date type input is not working in FF v88.0	2	147	May 5, 2021
Deprecation announcement for Canvas drawWindow method	1	435	May 3, 2021

Get started with Firefox extension development

Extensions provide a simple and powerful way to personalize your browsing experience. If you know JavaScript, CSS, and HTML, you can build your own. If you are brand-new to add-on development, you can get started by che…

3

782

June 6, 2021

Extension development tools

developer-tools

Hi all, I’m excited to share some tools that community members have recently created to help with extension development. If you’ve built something that could be helpful to others, please let us know by replying to this …