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	24595	July 11, 2014
Do older Firefox versions ignore "data_collection_permissions"? Development	0	8	September 16, 2025
Clarification on MV3 add-on signing and Firefox versions <128 (shows “corrupt” error) addons.mozilla.org issue	4	77	September 15, 2025
Can we access location of new tab wallpaper? Development	2	22	September 15, 2025
Quicktext thunderbird addons.mozilla.org	1	13	September 15, 2025
"Sorry, we couldn't load your WebExtension." Add-on Support	5	23	September 13, 2025
License: This field, or custom_license, is required for listed versions Development	3	25	September 12, 2025
Please unblock AD Blockers for Chinese users addons.mozilla.org	0	49	September 8, 2025
This extension is restricted for violating Mozilla’s policies and has been disabled Add-on Support	2	100	September 3, 2025
Local theme "corrupt" Add-ons issue	1	32	September 2, 2025
Renaming of an Add-on not completely recognized Add-on Support	5	62	September 2, 2025
page_action/pageAction is broken on Firefox 142 for Android Firefox for Android Add-ons	3	74	September 2, 2025
Can't sign in to developer account: "You do not have permission to perform this action." addons.mozilla.org	6	128	August 29, 2025
Dashlans Extension installation not recognized by Firefox Add-ons	1	24	August 29, 2025
Error when use web-ext with chrome with `--keep-profile-changes`? Development issue	3	43	August 29, 2025
Add on taken down, cant submit new version with recommended changes Add-on Support	1	56	August 28, 2025
How to restore a recently-closed tab group via WebExtensions API Development	2	145	August 28, 2025
Does web-ext not load extension when use with Chrome? Development learning , issue	3	25	August 28, 2025
Hard Work on My Undetectable Ad Blocker Extension — Yet No One is Using It on Firefox Add-ons	0	42	August 26, 2025
Fortnightly Discussion for 2025-08-15: How do you store data? Add-ons	2	36	August 25, 2025
WebExtError when signing but still succeed? Development issue	1	27	August 25, 2025
Extention "Awaiting Review" for long time addons.mozilla.org add-on-reviews	5	104	August 25, 2025
Apertura di nuovo link non richiesto al posto di quello da me cercato Add-ons	0	21	August 21, 2025
Need help with AMO phising scam addons.mozilla.org issue	9	134	August 21, 2025
Avast AntiTrack Add-ons	8	663	August 21, 2025
Impossible to get passed the confirm backup authentication code stage Firefox for Android Add-ons	22	463	August 20, 2025
[web-ext sign] WebExtError: Forbidden against valid credentials addons.mozilla.org webextensions-api	3	61	August 20, 2025
question about the addon policy Add-ons	1	38	August 17, 2025
What happens to storage when a user updates the extension? Development updates	1	44	August 17, 2025
The "data_collection_permissions" property is reserved addons.mozilla.org issue	6	94	August 15, 2025