+++ This bug was initially created as a clone of Bug #1571451 +++

[Affected Versions]:

• Nightly 70.0a1 (Build ID: 20190805095413)

[Affected Platforms]:

• All Windows
• All Mac
• All Linux

[Prerequisites]:

• Have at least one saved login.

[Steps to reproduce]:

1. Open the latest Nightly browser with the profile from prerequisites.
2. Navigate to "about:logins" page.
3. Open a website in a new tab (not about:newtab).
4. Restart the browser (Ctrl+Shift+J then Ctrl+Alt+R keys).
5. Wait until all tabs are loaded.
6. Focus the "about:logins" page and observe the behavior.

[Expected results]:

• The sidebar displays all the saved logins and the details of the first login from the list are shown on the right side.

[Actual results]:

• The sidebar doesn't display any login and an example of login details is shown on the right side.

[Notes]:

• The saved logins are restored if the page is refreshed.
• Attached a screen recording with the issue.

FWIW, using the steps from comment 0, I was able to restore the tab correctly before and after my patch. Though my patch does add an automated test for this now.

Backed out changeset ffda592c113d (Bug 1573924) for failures in browser_sessionRestore.js

Push with failure: https://treeherder.mozilla.org/#/jobs?repo=autoland&resultStatus=testfailed%2Cbusted%2Cexception&revision=ffda592c113d2fc619438e11a12fef412f6c0ffb&selectedJob=263269852

Failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=263269852&repo=autoland&lineNumber=3842

Backout: https://hg.mozilla.org/integration/autoland/rev/5d843f2c8ed9c2c4b3895588a492de3a3e526e5a

https://hg.mozilla.org/mozilla-central/rev/0c96f3ad6e07

I have verified this issue and is no longer reproducible on the latest Nightly 70.0a1 (2019-08-27)(64-bit) build on Windows 7 x64, Mac 10.14 and Arch Linux 4.12.

• The data is restored after restarting the browser with focus on a different tab