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…	6	13319	September 6, 2023
About the Development category	1	4411	May 21, 2015
Modify headers with declarativeNetRequest.updateSessionRules()? issue	7	1031	January 20, 2025
Is it allowed for an extension to load CSS and HTML dynamically?	4	130	January 19, 2025
Filtering of service worker scripts via browser.webRequest.filterResponseData not possible?	5	1017	January 17, 2025
How to automate add-on option screen tests?	6	80	January 17, 2025
Add button to toolbar/addressbar?	1	92	January 11, 2025
"Error loading dynamically imported module" when using Rollup issue	3	374	January 11, 2025
Browser extension storage "get" return value if nothing found	9	585	January 10, 2025
Native message On firefox learning , webextensions-api , feedback	4	243	January 10, 2025
How to change AddOn ID?	3	154	January 9, 2025
Firefox Add-on Rejected as SPAM — Looking for Feedback feedback	2	231	January 8, 2025
Pin Tab Enhancement / Side Bar Control	2	176	January 8, 2025
Manifest Version 3 and page action with minimal permissions learning	3	221	January 8, 2025
How can I change the color theme of Truthsocial.com on Firefox?	2	285	December 16, 2024
How to import npm packages in content script in an extension?	5	413	December 16, 2024
Is it possible to make a CLI for your browser extention?	2	310	December 16, 2024
Use OAuth 2.0 in Firefox WebExtension	5	5862	December 9, 2024
"commands" for android webextension? learning	2	607	March 1, 2024
CORS Policy for Addon request	5	504	December 4, 2024
Code in content_scripts not executed when document changes?	5	343	December 2, 2024
What version of Android Firefox added support for MV3?	4	538	November 30, 2024
Error testing addon with web-ext in Android. Unable to retrieve current user	5	364	November 29, 2024
Extension for block ads does not work as it should	4	425	November 28, 2024
declarativeNetRequest - dynamic rule not resulting in a redirect	3	462	November 25, 2024
Clicking on notification from MV3 extension has no effect if background script suspended	8	534	November 23, 2024
Options.html (as popup) & file picker	4	427	November 22, 2024
Content.js now need permissions on each matching URL	11	498	November 13, 2024
"Unsafe assignment to innerHTML" workarounds	5	488	November 7, 2024
Can web requests that sending in background script use the cache that set by web pages?	2	493	November 7, 2024

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…