This is caused by https://bugzilla.mozilla.org/show_bug.cgi?id=1570700#c10.
The resource:// URLs in the amazon OpenSearch descriptions we ship should be replaced by data: URIs, i.e.: resource://search-plugins/images/amazon.ico replaced by data:image/png;base64,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 ** Bug watch added: Mozilla Bugzilla #1570700 https://bugzilla.mozilla.org/show_bug.cgi?id=1570700 ** Changed in: firefox (Ubuntu) Assignee: (unassigned) => Olivier Tilloy (osomon) ** Changed in: firefox (Ubuntu) Importance: Undecided => Medium ** Changed in: firefox (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1844051 Title: No more Amazon icon in Firefox For Ubuntu Canonical To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1844051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs