1623405 - MDN and about:addons inconsistence about extension icons

Status: UNCONFIRMED

(Toolkit :: Add-ons Manager, enhancement, P3)

Description

[Qwerty]

MDN article https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/icons says:

You should supply at least a main extension icon, ideally 48x48 px in size. This is the default icon that will be used in the Add-ons Manager.

But in current about:addons it seems that 32x32 px icons are used. This results in many extensions icons to download from addons.cdn.mozilla.net and fail without internet. Including Mozilla's own https://addons.mozilla.org/en-US/firefox/addon/facebook-container/ and https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/, which have only 48 and 96 px icons in manifest, but not 32 px.
See also: https://github.com/uBlockOrigin/uBlock-issues/issues/939#issuecomment-597081070

Either use 48x48 in about:addons (more compatible with existing extensions) or update MDN article to current state and inform developers about change.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Comment 2

[Daniel Bodea [:danibodea]]

I'm assuming that the Frontend component is correct since this enhancement is referring to the icons of webextensions.

Hopefully, this is an error in the specs so let's leave this to the guys at Webextensions. NI me if manual testing is needed.

Comment 3

[Shane Caraveo (:mixedpuppy)]

Mark, is this a known issue?

Comment 4

[Deleted Account]

48x48 is used for hi dpi.

Comment 5

[Shane Caraveo (:mixedpuppy)]

aboutaddons.css does define 32px. We should update documentation.