Hey all.

I wanted to highlight some of the URL bar changes we did recently.

Our goal was to address the following spoofing issues:
- https://bugzilla.mozilla.org/show_bug.cgi?id=1018994
- https://bugzilla.mozilla.org/show_bug.cgi?id=1236431

Historically the URL bar has been serving two purposes:
(1) Showing the location/address of the document you are viewing
(2) Showing the security level and/or "who" you are connected to

To address the spoofing issues we decided to rank (2) (Who am I connected
to and is this secure?) higher. Some of those changes only affect mobile
phones and we explicitly excluded tablets.

Changes:

* Removing favicon from URL bar (Bug 1018994
<https://bugzilla.mozilla.org/show_bug.cgi?id=1018994>). From now on we
only show the site security icon in the URL bar. Previously a "green lock
favicon" could be used to trick the user into thinking the site would be
served using a secure SSL connection:
https://bugzilla.mozilla.org/attachment.cgi?id=8688151

* Showing a shortened URL: public suffix + 1 (Bug 1236431
<https://bugzilla.mozilla.org/show_bug.cgi?id=1236431>). Previously long
sub domains could move the actual domain out of sight and therefore be used
to pretend to be a different site:
https://bug1236431.bmoattachments.org/attachment.cgi?id=8703513
More about public suffix here: https://publicsuffix.org/learn/

* Showing the organization instead of the URL if an EV certificate is used (Bug
1249594 <https://bugzilla.mozilla.org/show_bug.cgi?id=1249594>). This is
something you might have seen on desktop. On desktop there's more space to
show the organization and the URL. On mobile we decided to just show the
organization.

All those changes only affect how we display something in the URL bar.
Clicking on the URL bar will always reveal the full URL and allow to edit
it.

Best,
Sebastian
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