### ESR Uplift Approval Request
* **If this is not a sec:{high,crit} bug, please state case for ESR consideration**: This is a critical bug, it reproduces 100% of time.
* **User impact if declined**: The users will encounter a crash every time they try to open all recent tabs from History.
* **Fix Landed on Version**:
* **Risk to taking this patch**: Low
* **Why is the change risky/not risky? (and alternatives if risky)**: This change is not risky because it simply enforces a pattern (to always check if a cursor is not being closed before trying to do anything with it) that is being pushed by Google.
* **String or UUID changes made by this patch**:
Bug 1564082 Comment 6 Edit History
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### ESR Uplift Approval Request
* **If this is not a sec:{high,crit} bug, please state case for ESR consideration**: This is a critical bug, it reproduces 100% of time.
* **User impact if declined**: The users will encounter a crash every time they try to open all recent tabs from History.
* **Fix Landed on Version**:
* **Risk to taking this patch**: Low
* **Why is the change risky/not risky? (and alternatives if risky)**: This change is not risky because it simply enforces a pattern (to always check if a cursor is not already closed before trying to do anything with it) that is being pushed by Google.
* **String or UUID changes made by this patch**: