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	24534	July 11, 2014
Focusing on Tab Bar Development	13	56	June 14, 2025
"Unsafe Assignment to innerHTML in Firefox Extension Submission – Need Guidance and Alternatives" Add-ons development , issue	3	30	June 14, 2025
Where can we find the new release notes? Add-on Support	5	16	June 13, 2025
Addon statistics not loading (AMO Dashboard) addons.mozilla.org	7	74	June 13, 2025
Localy stored backups - altenrative soltuions Development	1	9	June 13, 2025
Trending Themes shows 0 users Themes	2	611	June 12, 2025
Don't Support this location? Add-ons issue	3	487	October 31, 2024
Open special Gmail & Outlook links to compose a new message Firefox for Android Add-ons issue	2	27	June 10, 2025
WebExtError “unsupported filetype” when trying to sign a locally built extension addons.mozilla.org	10	115	June 9, 2025
Tab group support in Firefox 138 Announcements	5	110	June 9, 2025
Is it group.color to retreive Group of Tabs color a user have selected? Development	7	62	June 9, 2025
[Support] Sage-Like - Sidebar Based RSS Feed Reader Add-on Support	88	14061	June 9, 2025
Installation Add-on Add-ons	2	19	June 9, 2025
tbsync for thunderbird 139.0 Add-on Support	1	78	June 9, 2025
How to remove/hide add-on from sidebar Add-on Support	12	571	June 7, 2025
How to prevent my theme from being flagged as a duplicate Themes	1	21	June 6, 2025
Extention "Awaiting Review" for long time addons.mozilla.org add-on-reviews	1	27	June 4, 2025
Expose/Document Theme Color Computation addons.mozilla.org	2	35	June 4, 2025
Possible to create tab groups in an addon Add-ons	1	16	June 3, 2025
Dynamically adding elements to the updated sidebar Development	0	16	June 2, 2025
Idea - Thunderbird AI Spam Prevention Addon Add-ons participation	2	35	May 31, 2025
Can't set Google UK to default Add-on Support	2	2837	April 10, 2020
Specific history remover - PORN addons.mozilla.org learning	5	6615	May 30, 2025
onInstall tabs.create not working when enabling privacy mode (Firefox Android - bug) Firefox for Android Add-ons issue	5	669	May 29, 2025
Why does Firefox keep disabling the KEEPER add on? Add-ons	6	74	May 29, 2025
Is it normal for Firefox Add-on review to take this long? Add-on Support	2	127	May 29, 2025
Extension stuck on "Awaiting review" for concerning amount of time Add-ons	9	122	May 27, 2025
Internal server error when trying to log in addons.mozilla.org	7	1336	May 27, 2025
How to add an update link for an extension? Add-ons	2	21	May 26, 2025