Add-ons

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. Contribute Help keep Firefox the most customizable browser available. Contribute code, organize events, translate things, evangelize, and more. Themes Discussions about background themes and complete themes. 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. addons.mozilla.org Discussions about AMO add-on reviews and bugs.

Topic	Replies	Views	Activity
About the Add-ons category Add-ons	1	23254	July 11, 2014
I can't set the ID for the extension Development issue	1	19	July 26, 2024
Sidebar for Firefox and Popup for Firefox for Android in a Single Plugin Development	6	196	July 26, 2024
Suggestions for New Add-Ons addons.mozilla.org	4	103	July 25, 2024
Can't log in into add-on shop Add-on Support	5	68	July 25, 2024
Why is querySelector returning null? Development	7	109	July 24, 2024
Need more advice on non-persistence Development	16	1057	July 24, 2024
How to retrieve add - ons from my previous account Add-ons issue	14	771	July 24, 2024
Bug with uploading "large" files in addon addons.mozilla.org	9	1373	July 22, 2024
"accessibility"what easiest way to chang tabs font color & Size Themes	2	81	July 22, 2024
Element removed reappears after refresh Development learning	4	175	July 22, 2024
Weird Tags for themes Themes issue	6	284	July 22, 2024
Manifest V3 compatibility warning addons.mozilla.org	8	348	July 22, 2024
Addon to indicate are logged in to google? Development	2	116	July 20, 2024
Configurable browser action for MV3 extension Development	5	184	July 19, 2024
Enabling linux java support in firefox 117 Add-on Support	6	2215	July 18, 2024
MV3 background scripts vs serviceworkers - MS/Edge didn't get the memo? Development manifest-v3	4	332	July 16, 2024
More Short Cuts Add-ons	4	153	July 15, 2024
Browser Setting API onChange support Development	2	506	July 14, 2024
Firefox extension for opening a file with custom extension Development	11	233	July 12, 2024
Add-on support in new Firefox for Android Add-on Support	178	39721	August 11, 2023
[Support] FoxyTab Add-on Support	243	18159	December 28, 2020
Error - the add on downloaded from this site could not be installed because it appears to be corrupt old version Add-on Support	5	881	July 12, 2024
Youtube thumbnails modification unable to change on Firefox For Android Add-on Support	5	326	July 11, 2024
One of my Manifest V3 addons is not waking up when it should Development	41	764	July 11, 2024
Switching focus from the sidebar to the active tab Development	6	283	July 11, 2024
Missing Context menus (mv3) Development issue , manifest-v3	8	418	July 10, 2024
Cannot login to Firefox Addons account addons.mozilla.org login	7	1460	March 5, 2022
Add AutoControl extension Add-on Support	2	575	July 9, 2024
How to prevent idle state? Development	6	998	July 9, 2024