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. Add-on Support Need help with an add-on? Ask here! addons.mozilla.org Discussions about AMO add-on reviews and bugs. 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	24584	July 11, 2014
Hard Work on My Undetectable Ad Blocker Extension — Yet No One is Using It on Firefox Add-ons	0	0	August 26, 2025
Weekly Discussion for 2025-08-15: How do you store data? Add-ons	2	12	August 25, 2025
WebExtError when signing but still succeed? Development issue	1	16	August 25, 2025
Can't sign in to developer account: "You do not have permission to perform this action." addons.mozilla.org	4	74	August 25, 2025
Extention "Awaiting Review" for long time addons.mozilla.org add-on-reviews	5	69	August 25, 2025
Apertura di nuovo link non richiesto al posto di quello da me cercato Add-ons	0	17	August 21, 2025
Need help with AMO phising scam addons.mozilla.org issue	9	118	August 21, 2025
Avast AntiTrack Add-ons	8	410	August 21, 2025
Impossible to get passed the confirm backup authentication code stage Firefox for Android Add-ons	22	422	August 20, 2025
[web-ext sign] WebExtError: Forbidden against valid credentials addons.mozilla.org webextensions-api	3	46	August 20, 2025
question about the addon policy Add-ons	1	31	August 17, 2025
What happens to storage when a user updates the extension? Development updates	1	33	August 17, 2025
The "data_collection_permissions" property is reserved addons.mozilla.org issue	6	67	August 15, 2025
Hello, I need to appeal! I was attacked by hackers Add-on Support	4	114	August 14, 2025
Listing webextension on both AMO and addons.thunderbird.net addons.mozilla.org thunderbird , development	2	44	August 14, 2025
Antitrack désactivé Add-ons	0	78	August 13, 2025
How can we get a real response to an unclear extension delisting? addons.mozilla.org feedback , add-on-reviews	6	108	August 13, 2025
[web-ext lint] The Function constructor is eval Add-ons	2	37	August 11, 2025
Accessing closed tab groups Development	4	73	August 11, 2025
Deleting All Bookmarks in Folder (weird Fx bug?) Development	8	89	August 8, 2025
Challenges Addressing Third-Party Library Policy in Add-on Submission addons.mozilla.org feedback , issue	1	35	August 8, 2025
Any idea to create new window in correct position in 3200x2000 with 200% scale? Development	3	39	August 6, 2025
[Blog post] Add-on Policy and Process Updates Announcements	9	11679	August 5, 2025
Where did `firefox-storage-test.glitch.me` go? Development	2	52	August 5, 2025
scripting.messageDisplay.registerScripts() are called twice? Development	5	63	August 5, 2025
Sitzung wiederherstellen addons.mozilla.org	3	84	August 4, 2025
New collection Add-on Support	0	38	August 2, 2025
Chinese users can't use AD blocker extensions addons.mozilla.org	13	9499	July 31, 2025
What is the default build environment for add ons? Add-ons issue	1	27	July 30, 2025