We have one single user left which goes back to bug 726444. No mention to this attribute there and it seems to work without it. Thunderbird has another validate="never" usage for favicons, but they should replace it by an HTML image element like we did with ours in bug 1718220. Differential Revision: https://phabricator.services.mozilla.com/D168920
44 KiB
44 KiB