Development

Topic	Replies	Views	Activity
About the Development category	4	3808	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	10667	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	9950	June 23, 2021
Content Scripts do not load learning , issue	1	22	May 3, 2024
The attention tab property	1	28	May 3, 2024
Post-MV3 versioning for "cross-browser" extensions? manifest-v3	3	180	May 3, 2024
Choosing Origin header from background script issue	2	78	May 3, 2024
Load local WebExtension issue, plz help! issue	2	76	May 2, 2024
How to move find bar to the top? learning	1	58	April 27, 2024
Where is this path? learning	2	84	April 25, 2024
Modify headers with declarativeNetRequest.updateSessionRules()? issue	6	291	April 22, 2024
My Add-on keep getting taken down for no reason	2	96	April 22, 2024
Python "native-messaging" web extensions on mac unable to read / write files on Downloads folder webextensions-api	3	1129	April 22, 2024
Native messaging webextensions-examples errors	3	122	April 21, 2024
tabs.executeScript does not work with containered tabs issue	3	125	April 18, 2024
Content-script: How to wait for React DOM to load? content	2	579	April 15, 2024
How to use a custom font in addon learning	3	176	April 11, 2024
[WebExtension] Import a module in a script	10	12824	April 2, 2024
Demonstrating security of an add-on privacy-and-security	6	285	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	2520	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	232	March 12, 2024
Webextension: Retry failed download learning	12	2442	March 12, 2024
MV3 browser.scripting.executeScript throws Missing host permission for the tab	6	987	March 12, 2024
Focus sidebar when it opens, and other things	10	1265	March 12, 2024
How to stop a background script from going idle in MV3? learning	8	412	March 5, 2024
"commands" for android webextension? learning	2	226	March 1, 2024
Is there a way to make permissions mandatory in Manifest v3? learning	4	236	February 21, 2024
Can not submit add-on issue	4	262	February 21, 2024
"/background/service_worker" is not supported	4	372	February 20, 2024

About the Development category

4

3808

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

10667

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 …