Add-ons

Firefox for Android Add-ons This space is specifically for developers with technical questions as they prepare their desktop add-ons for availability on Android. addons.mozilla.org Discussions about AMO add-on reviews and bugs. Add-on Support Need help with an add-on? Ask here! Contribute Help keep Firefox the most customizable browser available. Contribute code, organize events, translate things, evangelize, and more. Development Technical discussions about add-on development. Announcements Important announcements for the add-ons community. Themes Discussions about background themes and complete themes.

Topic	Replies	Views	Activity
About the Add-ons category Add-ons	1	21137	July 11, 2014
How to use NotificationBox with Thunderbird? Development	2	58	September 24, 2023
[EDITED] Error: Permission denied to access property "then" Development manifest-v3 , issue	1	40	September 23, 2023
Welcome, Android extension devs! Firefox for Android Add-ons	2	59	September 22, 2023
Nextcloud Passman addon for Android Firefox for Android Add-ons	1	41	September 22, 2023
Please improve the way host permissions are requested and granted in Manifest v3 (puzzle icon) addons.mozilla.org manifest-v3	2	70	September 20, 2023
Add-on reverted to a 2-year-old version, huge breaking changes for our users Add-on Support	1	81	September 20, 2023
OneNote Web Clipper extension has been removed from Firefox Add-ons	6	1441	September 19, 2023
Porting Chrome add-on -> Firefox: page permissions not granted by default? Development	7	493	September 19, 2023
Will scripting.ExecutionWorld.MAIN be supported? Add-on Support	6	575	September 19, 2023
Content script fails to send message to non-persistent background script Development	2	60	September 19, 2023
Télécharger iGraal sur Firefox Add-ons	1	45	September 19, 2023
Please update add-ons faster! addons.mozilla.org	4	340	September 18, 2023
IP address has been blocked, can't submit a new add-on Add-ons	1	46	September 18, 2023
Duplicate add-on ID Error Add-on Support	4	101	September 18, 2023
InvalidStateError: CanvasRenderingContext2D.putImageData: Failed to extract Uint8ClampedArray from ImageData (security check failed?) Add-on Support	7	110	September 15, 2023
Missing extensions after building Icecat 115.2.1 Development	1	64	September 14, 2023
Need help on how to ask permission to the user to have access to a website data (Manifest V3) Add-on Support	3	96	September 14, 2023
Cross-platform windows.onFocusChanged issues - How to check if no windows have focus? How to detect a minimize event? Development	5	137	September 13, 2023
Enabled javascript mac Add-ons	1	60	September 13, 2023
Enabling linux java support in firefox 117 Add-on Support	3	146	September 11, 2023
All theme properties Themes	5	301	September 7, 2023
Get started with Firefox extension development 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	7761	September 6, 2023
Facing error Duplicate add-on ID found addons.mozilla.org	1	118	September 5, 2023
Can't publish add-on Duplicate add-on ID found error addons.mozilla.org	3	498	September 5, 2023
How do I publish my extension for Android? Development	3	164	September 2, 2023
Request for Add On type Add-ons	1	108	August 30, 2023
Enrich search bar with a personal set of suggestion Development	1	120	August 30, 2023
Enable extensions on reader view Add-on Support	3	157	August 28, 2023
Temporary extension and private browsing Development	4	652	August 28, 2023