Add-ons

Contribute Help keep Firefox the most customizable browser available. Contribute code, organize events, translate things, evangelize, and more. 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. Themes Discussions about background themes and complete themes. addons.mozilla.org Discussions about AMO add-on reviews and bugs. Add-on Support Need help with an add-on? Ask here! Announcements Important announcements for the add-ons community. Development Technical discussions about add-on development.

Topic	Replies	Views	Activity
About the Add-ons category Add-ons	0	24613	July 11, 2014
How to reliably detect online offline events with mv3 on firefox Add-on Support	6	45	October 7, 2025
Fake / non working extensions added to addons.mozilla.org just for SEO Add-ons	0	19	October 6, 2025
Ownership transfer to upload plugins Add-ons	1	22	September 25, 2025
Ambire add-on immediately wrongly delisted again - 3rd time this year, reconsider automatic delistings? Add-on Support	0	13	October 6, 2025
IDEA - Add Unsubscribe Footer Development thunderbird	0	10	October 5, 2025
Chat GPT voice mode in extension no longer working Add-on Support	1	14	October 5, 2025
Staff picks for Top anti-tracking extensions addons.mozilla.org learning , feedback , issue , privacy-and-security , add-on-reviews	3	163	October 4, 2025
Why does the new version of the IDM addon take a long time to be reviewed? Add-on Support	1	21	October 2, 2025
Popup opens in "Quirks Mode" with no styling Add-on Support	4	616	October 2, 2025
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…	7	15428	October 3, 2025
Where to ask for add-on feedback? Add-on Support	3	32	September 30, 2025
WebExtension API support for web app windows Development	2	59	September 28, 2025
Metamask add on Add-ons	2	18	September 29, 2025
How long does a review take? Add-ons	2	32	September 26, 2025
Old private addon no longer showing on my account addons.mozilla.org	2	34	September 26, 2025
How can I restore my account on addons.mozilla.org? addons.mozilla.org	12	3467	September 26, 2025
Add-on in "Awaiting Review" since several days Add-ons add-on-reviews	4	22	September 26, 2025
Why was/is the Add-On "Google Search without AI" blocked? addons.mozilla.org	0	26	September 25, 2025
Download api available? Firefox for Android Add-ons	6	910	September 23, 2025
Comment ajouter avast anti track sur firefox Add-ons	3	16	September 22, 2025
Theme rejected as duplicate addons.mozilla.org	1	13	September 22, 2025
Request for Review of My Firefox Add-on Submission Add-ons	1	22	September 22, 2025
Validation says data_collection_permissions missing, but exists in manifest? Development issue	2	81	September 20, 2025
Do older Firefox versions ignore "data_collection_permissions"? Development	1	35	September 19, 2025
Do extension settings reference or depend on the extension's internal uuid? Development	2	17	September 19, 2025
Clarification on MV3 add-on signing and Firefox versions <128 (shows “corrupt” error) addons.mozilla.org issue	4	112	September 15, 2025
Can we access location of new tab wallpaper? Development	2	30	September 15, 2025
Quicktext thunderbird addons.mozilla.org	1	22	September 15, 2025
"Sorry, we couldn't load your WebExtension." Add-on Support	5	41	September 13, 2025