Add-ons

Contribute Help keep Firefox the most customizable browser available. Contribute code, organize events, translate things, evangelize, and more. Add-on Support Need help with an add-on? Ask here! 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. Development Technical discussions about add-on development. addons.mozilla.org Discussions about AMO add-on reviews and bugs. 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	22611	July 11, 2014
Post-MV3 versioning for "cross-browser" extensions? Development manifest-v3	3	174	May 3, 2024
Will users of old browser automatically see the latest compatible version? addons.mozilla.org	4	198	May 3, 2024
Allow an extension to configure Firefox security devices_PCKS11 Add-on Support	4	250	May 3, 2024
Add-ons that break Websites & Add-on Management Add-ons	4	98	May 3, 2024
Trigger event when the user hovers the mouse over any tab Add-on Support	2	84	May 3, 2024
Choosing Origin header from background script Development issue	2	75	May 3, 2024
My replies to reviews are getting deleted addons.mozilla.org	8	296	May 2, 2024
Load local WebExtension issue, plz help! Development issue	2	73	May 2, 2024
Help on private theme download link Themes issue	2	145	May 2, 2024
[Support] Sage-Like - Sidebar Based RSS Feed Reader Add-on Support	69	9702	May 1, 2024
"Reported" themes not being checked Themes	5	213	April 27, 2024
The resigning of old add-ons addons.mozilla.org	5	150	April 27, 2024
How to move find bar to the top? Development learning	1	57	April 27, 2024
Add-on Review Questions addons.mozilla.org add-on-reviews This is a thread for questions about the add-on review process. I’ll be merging older existing threads into this one to help keep them in one place. If you have a question that hasn’t been previously answered, please fe…	139	13822	April 27, 2024
Where is this path? Development learning	2	81	April 25, 2024
Shortcomings of Firefox themeing modules, many elements can't be themed or updated Themes	3	293	April 24, 2024
Upcoming site maintenance for Extension Workshop Announcements	1	69	April 24, 2024
How to build something to add customized fields to the firefox password manager Add-ons	1	77	April 24, 2024
Why can I not load a simple custom extension/addon xpi file in Android Nightly? Add-on Support	2	281	April 23, 2024
Menu font change in FF for Mac Add-ons	2	144	April 23, 2024
Modify headers with declarativeNetRequest.updateSessionRules()? Development issue	6	288	April 22, 2024
PKCS11_addon addons.mozilla.org	2	197	April 22, 2024
Addon to change tab title Add-on Support	2	247	April 22, 2024
Making an addon searchable in https://addons.mozilla.org addons.mozilla.org	2	220	April 22, 2024
My Add-on keep getting taken down for no reason Development	2	91	April 22, 2024
Python "native-messaging" web extensions on mac unable to read / write files on Downloads folder Development webextensions-api	3	1115	April 22, 2024
Native messaging webextensions-examples errors Development	3	120	April 21, 2024
Regarding our add-on rejected by mozilla team Add-ons issue	8	243	April 20, 2024
tabs.executeScript does not work with containered tabs Development issue	3	124	April 18, 2024