Development

Topic	Replies	Views	Activity
About the Development category	4	3831	March 28, 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…	6	10749	September 6, 2023
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	9973	June 23, 2021
Compiler-generated add-on code: Unsafe assignment to innerHTML	1	18	May 12, 2024
Firefox InternalError (MV3) manifest-v3	6	52	May 11, 2024
How to avoid linter warnings caused by limited Android API?	2	48	May 10, 2024
Web Requests created by extension are no longer logged in the Developer Toolbox	1	41	May 9, 2024
Ability to detect name of active webform control?	1	55	May 8, 2024
Choosing Origin header from background script issue	4	161	May 8, 2024
Post-MV3 versioning for "cross-browser" extensions? manifest-v3	4	251	May 8, 2024
The attention tab property	1	98	May 3, 2024
Content Scripts do not load learning , issue	2	109	May 4, 2024
Load local WebExtension issue, plz help! issue	2	127	May 2, 2024
How to move find bar to the top? learning	1	93	April 27, 2024
Where is this path? learning	2	120	April 25, 2024
Modify headers with declarativeNetRequest.updateSessionRules()? issue	6	324	April 22, 2024
My Add-on keep getting taken down for no reason	2	117	April 22, 2024
Python "native-messaging" web extensions on mac unable to read / write files on Downloads folder webextensions-api	3	1172	April 22, 2024
Native messaging webextensions-examples errors	3	139	April 21, 2024
tabs.executeScript does not work with containered tabs issue	3	146	April 18, 2024
Content-script: How to wait for React DOM to load? content	2	674	April 15, 2024
How to use a custom font in addon learning	2	196	April 5, 2024
[WebExtension] Import a module in a script	10	12873	April 2, 2024
Demonstrating security of an add-on privacy-and-security	6	305	April 1, 2024
How to ask user to grant permissions for 'Access your data for all websites' through a prompt during the installation process	6	2564	March 27, 2024
Can Firefox add-ons access information in the SSL/TLS handshake?	7	5257	November 12, 2017
Cannot inject a JavaScript file because of a CSP limitations	8	258	March 12, 2024
Webextension: Retry failed download learning	12	2470	March 12, 2024
MV3 browser.scripting.executeScript throws Missing host permission for the tab	6	1039	March 12, 2024
Focus sidebar when it opens, and other things	10	1283	March 12, 2024

About the Development category

4

3831

March 28, 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…

6

10749

September 6, 2023

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 …