867477 - Crashing when closing Firefox Metro when several tabs are loading

Status: RESOLVED WORKSFORME

(Firefox for Metro Graveyard :: Browser, defect)

Description

[Kamil Jozwiak [:kjozwiak]]

When loading several different "Tabs" and then suddenly closing Firefox Metro by sliding the browser to the bottom, re-opening it will produce a crash and quickly close Firefox Metro. Re-opening it for the third time, you will receive a message stating that there was a crash.

Links to Crash Reports:

- https://crash-stats.mozilla.com/report/index/bp-82020be9-a4f5-4f32-b4b5-792532130501
- https://crash-stats.mozilla.com/report/index/bp-af759d8d-8e58-47ab-885b-13bb32130501
- https://crash-stats.mozilla.com/report/index/bp-6de04c44-8b02-4258-a851-490012130501

Steps to reproduce the issue:

1) Ensure that you have several different websites under "Top Sites"
2) Select a website from the "Top Sites", while it starts loading select the "+" on the side of the browser and select another website from "Top Sites"
3) Repeat Step #2 several times until you have about 6-7 websites loading in Firefox Metro
4) While those websites are loading, close Firefox Metro by sliding the browser to the bottom of the screen
5) Re-Open Firefox Metro and it will start loading and then suddenly disappear (Crash)
6) Re-Open Firefox Metro for the third time and you will receive the "Crash" tab

Re-produced this on two different machines.

Current Behavior:

- When closing Firefox Metro while several tabs are being loaded, you will receive a crash if you re-open Firefox Metro

Expected Behavior:

- Shouldn't produce a crash and should close without any crashes