Development

Topic	Replies	Views	Activity
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 …	6	7391	June 23, 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	2488	June 23, 2021
About the Development category	1	2797	May 21, 2015
Anyone else really hating Manifest V3?	3	59	January 21, 2022
Pass event listener from popup.js to background.js script	15	133	January 21, 2022
How to keep extension running in background after closing the popup? learning , issue	19	287	January 18, 2022
When will web-ext support Manifest v3? webextensions-api	6	201	January 14, 2022
Tracking down infinite loop with memory leak in my own addon	3	109	January 14, 2022
Make addressbar text "Extension (Name Of The Extension)" shorter or hide	16	3012	January 11, 2022
Could not establish connection - without explicit message sending or extension work	3	114	January 10, 2022
When will it be possible to test add-ons under manifest 3 using Firefox	6	185	January 6, 2022
How to replace DOMParser in background.js Service Worker	1	121	January 4, 2022
Automate adds-on publication using CICD	4	151	January 4, 2022
How to get started with writing extensions for Firefox on Android?	2	126	January 4, 2022
Can extensions overwrite CSS media features/query?	4	658	January 3, 2022
Firefox plugin intercepts HTTP requests	4	1120	January 3, 2022
How to get the caret position in ContentEditable elements with respect to the innerText?	1	123	January 3, 2022
Content Security Policy(“script-src”) - Websocket connection - Firefox extension	3	184	January 3, 2022
Using js, how can I get Google or Bing search results to fit in the side bar	2	135	January 1, 2022
I don't see any option to debug the sidebar code	3	147	December 29, 2021
Can't select text displayed in the sidebar	3	130	December 31, 2021
How to change popup border color? learning	4	306	December 31, 2021
How do I import a module	2	202	December 31, 2021
How to make extension code run in the web console?	3	96	December 30, 2021
browser.runtime.sendMessage not working for injected iframe	6	136	December 30, 2021
Retrieve URL	18	485	December 29, 2021
New FireFox broke the extension	10	258	December 29, 2021
How to get information from page and display it on PopUp button	5	135	December 26, 2021
Installation via policy	4	629	December 25, 2021
<script src="...-.txt" type="text/javascript"> not a valid JavaScript MIME type	1	106	December 22, 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 …

6

7391

June 23, 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

2488

June 23, 2021

About the Development category