Thanks for cheking. I'm not sure how I triggered the problem, we had lost power at some point recently, so perhaps a restarted session, but here is a test case:
I used a "new private window" for this test. Navigate to:
Click on the lock icon: see that cookie permission is allowed, click the X to disallow cookie. Firefox responds by saying it may be necessary to reload the page.
Hit the reload button
Now the browser's history has two items:
The original URI is lost.
- Paste the original URI into location bar again, and again it is converted to the cookieAbsent URI. Whatever mechanism is used to send me to the cookieAbsent URI seems to be scrubbing the original URI from the history.
Now, I'm trying to repeat my test with more acm.org pages in my history, but I don't know how to re-allow the cookie for "http://dl.acm.org". Clicking "manage protection settings", under the blocked cookie, in the location bar drop down, brings up Preferences, and http://dl.acm.org is "allowed" under "Exceptions - Cookies and Site Data", but the cookie is actually blocked in both private and normal browser sessions, perhaps this is a separate bug. I'll try restarting (later) to see if this helps.