Created attachment 8754564 [details] swith-to-tab-twice.png It's possible to end up with duplicate history items for the same url. For example, looking at my profile's history table, I see that I have three duplicated urls: sqlite> select count(url), url from history group by url; ... 2|http://reddit.com/ ... 2|https://news.ycombinator.com/ ... 2|https://www.reddit.com/ More details: sqlite> select * from history where url = "https://www.reddit.com/"; 42|reddit: the front page of the internet|https://www.reddit.com/|21|7|1463695979785|1463689815609|1463695982302|rD82iAN99zxz|0 51|reddit: the front page of the internet|https://www.reddit.com/|21|7|1463695979785|1463689816585|1463695982302|PTycvyhDNw7n|0 See attached screenshot for how this manifests itself in the Top Sites UI. Notice "Switch to tab" appearing for both reddit entries. I only have one reddit tab open at this time. Perhaps something in the sync history record reconciliation going bonkers?
Status: NEW → RESOLVED
Last Resolved: a year ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1332621
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