I think this is the "install from the store" dialog?  (Seems different than a dialog focused on extensions not-from-the-store would be, do we have one of those?)

https://drive.google.com/file/d/0B1VXa3kr2lYjZ1Fpc2Q3bTZ3Sk0/view shows the "*inline* extension install dialog". I think we are using  Issue 605657  for that. This is the dialog that shows when a website wants to link "directly" to their extension in the webstore.

There is also the "*external* extension install" dialog. This is shown when Chrome detects at startup that an extension has been forcibly installed into Chrome's user data dir (e.g. by a third party installer, when you forget to untick that "also install other stuff I never asked for" checkbox). That looks like https://bugs.chromium.org/p/chromium/issues/attachment?aid=302157&inline=1 . Note this extension must *also* live in the webstore - Chrome blacklists extensions that don't have a webstore presence. It just wasn't installed via a webstore download in this case.

There is *also* the "*remote* extension install dialog" dialog. This is shown when Chrome runs with a corp policy that changes (or was newly detected), and that policy directs chrome to automatically install an extension without prompting. This looks like https://bugs.chromium.org/p/chromium/issues/attachment?aid=301422&inline=1

(And of course there's the regular install dialogs you see at the webstore. And the update dialog. And removal dialogs. And "has upgraded permissions" dialog.)

Looks like all the right folks are on this already.  Assigning to pkasting@ to find a proper owner in order to get it out of extensions triage. :)

Going through and making sure there is only one bug for each type of extensions dialog.

For reference:
 bug 60565  is for the regular "install an extension?"
"extension installed by server" is a GlobalErrorWithStandardBubble
 bug 654124  is for the "extension was installed externally" and the "requires new permissions to re-enable" dialogs
 bug 654133  is for extension removal

That should be " bug 605657 " for the regular "install an extension" dialog