Development

Topic	Replies	Views	Activity
About the Development category	4	3782	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	10535	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	9888	June 23, 2021
tabs.executeScript does not work with containered tabs issue	3	43	April 18, 2024
Python "native-messaging" web extensions on mac unable to read / write files on Downloads folder webextensions-api	2	732	April 16, 2024
Content-script: How to wait for React DOM to load? content	2	433	April 15, 2024
How to use a custom font in addon learning	3	134	April 11, 2024
[WebExtension] Import a module in a script	10	12693	April 2, 2024
Demonstrating security of an add-on privacy-and-security	6	243	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	2411	March 27, 2024
Modify headers with declarativeNetRequest.updateSessionRules()? issue	5	213	March 26, 2024
Can Firefox add-ons access information in the SSL/TLS handshake?	7	5213	November 12, 2017
Cannot inject a JavaScript file because of a CSP limitations	8	200	March 12, 2024
Webextension: Retry failed download learning	12	2371	March 12, 2024
MV3 browser.scripting.executeScript throws Missing host permission for the tab	6	929	March 12, 2024
Focus sidebar when it opens, and other things	10	1231	March 12, 2024
How to stop a background script from going idle in MV3? learning	8	335	March 5, 2024
"commands" for android webextension? learning	2	198	March 1, 2024
Is there a way to make permissions mandatory in Manifest v3? learning	4	205	February 21, 2024
Can not submit add-on issue	4	225	February 21, 2024
"/background/service_worker" is not supported	4	317	February 20, 2024
Browser extension uninstallation Issue	2	229	February 17, 2024
Is storage.sync preserved after extensions are updated	20	384	February 14, 2024
Preload extension	7	509	February 5, 2024
Cannot load file with opencv.js	3	301	February 2, 2024
WebExtension does not start the content script	1	173	January 29, 2024
Does an add-on self-distributed via Web download auto update learning	3	306	January 29, 2024
Where does firefox store the data whether an extension is enabled or disabled?	1	199	January 21, 2024
Looking for workaround for PDF viewer "content script restriction" issue	2	397	January 18, 2024
Unable to access the HTML & CSS in the sidebar	3	509	March 20, 2023

About the Development category

4

3782

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

10535

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 …