Development

Topic	Replies	Views	Activity
About the Development category	4	3797	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	10613	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	9915	June 23, 2021
How to move find bar to the top? learning	1	25	April 27, 2024
Post-MV3 versioning for "cross-browser" extensions? manifest-v3	1	77	April 26, 2024
Where is this path? learning	2	54	April 25, 2024
Modify headers with declarativeNetRequest.updateSessionRules()? issue	6	267	April 22, 2024
My Add-on keep getting taken down for no reason	2	70	April 22, 2024
Python "native-messaging" web extensions on mac unable to read / write files on Downloads folder webextensions-api	3	974	April 22, 2024
Native messaging webextensions-examples errors	3	93	April 21, 2024
tabs.executeScript does not work with containered tabs issue	3	103	April 18, 2024
Content-script: How to wait for React DOM to load? content	2	520	April 15, 2024
How to use a custom font in addon learning	3	162	April 11, 2024
[WebExtension] Import a module in a script	10	12777	April 2, 2024
Demonstrating security of an add-on privacy-and-security	6	274	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	2480	March 27, 2024
Can Firefox add-ons access information in the SSL/TLS handshake?	7	5237	November 12, 2017
Cannot inject a JavaScript file because of a CSP limitations	8	222	March 12, 2024
Webextension: Retry failed download learning	12	2420	March 12, 2024
MV3 browser.scripting.executeScript throws Missing host permission for the tab	6	962	March 12, 2024
Focus sidebar when it opens, and other things	10	1253	March 12, 2024
How to stop a background script from going idle in MV3? learning	8	379	March 5, 2024
"commands" for android webextension? learning	2	217	March 1, 2024
Is there a way to make permissions mandatory in Manifest v3? learning	4	224	February 21, 2024
Can not submit add-on issue	4	250	February 21, 2024
"/background/service_worker" is not supported	4	349	February 20, 2024
Browser extension uninstallation Issue	2	236	February 17, 2024
Is storage.sync preserved after extensions are updated	20	396	February 14, 2024
Preload extension	7	531	February 5, 2024
Cannot load file with opencv.js	3	322	February 2, 2024

About the Development category

4

3797

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

10613

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 …