Development

Topic	Replies	Views	Activity
About the Development category	4	3816	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	10695	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	9959	June 23, 2021
The attention tab property	1	68	May 3, 2024
Choosing Origin header from background script issue	3	111	May 4, 2024
Content Scripts do not load learning , issue	2	76	May 4, 2024
Post-MV3 versioning for "cross-browser" extensions? manifest-v3	3	203	May 3, 2024
Load local WebExtension issue, plz help! issue	2	95	May 2, 2024
How to move find bar to the top? learning	1	71	April 27, 2024
Where is this path? learning	2	101	April 25, 2024
Modify headers with declarativeNetRequest.updateSessionRules()? issue	6	307	April 22, 2024
My Add-on keep getting taken down for no reason	2	109	April 22, 2024
Python "native-messaging" web extensions on mac unable to read / write files on Downloads folder webextensions-api	3	1162	April 22, 2024
Native messaging webextensions-examples errors	3	126	April 21, 2024
tabs.executeScript does not work with containered tabs issue	3	130	April 18, 2024
Content-script: How to wait for React DOM to load? content	2	611	April 15, 2024
How to use a custom font in addon learning	3	184	April 11, 2024
[WebExtension] Import a module in a script	10	12837	April 2, 2024
Demonstrating security of an add-on privacy-and-security	6	289	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	2531	March 27, 2024
Can Firefox add-ons access information in the SSL/TLS handshake?	7	5245	November 12, 2017
Cannot inject a JavaScript file because of a CSP limitations	8	235	March 12, 2024
Webextension: Retry failed download learning	12	2452	March 12, 2024
MV3 browser.scripting.executeScript throws Missing host permission for the tab	6	1004	March 12, 2024
Focus sidebar when it opens, and other things	10	1269	March 12, 2024
How to stop a background script from going idle in MV3? learning	8	422	March 5, 2024
"commands" for android webextension? learning	2	228	March 1, 2024
Is there a way to make permissions mandatory in Manifest v3? learning	4	238	February 21, 2024
Can not submit add-on issue	4	267	February 21, 2024
"/background/service_worker" is not supported	4	383	February 20, 2024

About the Development category

4

3816

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

10695

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 …