Kostas Reporter
	Description • 10 years ago

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0 (Beta/Release)
Build ID: 20140418030202

Steps to reproduce:

1. Launch latest Nightly 31.
Nightly will open in Nightly start page (about:home)
2. Enable Electrolysis in about:config.
set these 2 prefs to true: 
layers.offmainthreadcomposition.enabled
browser.tabs.remote.autostart
and restart Nightly. 
Nightly will start with an e10s window and open the Nightly start page (about:home)
3. Try to minimize and restore Nightly 
by either clicking the Minimize button on the upper right, or clicking the button on the taskbar,
Nightly crashes every single time.

PS. I didn't notice crashes when minimizing & restroring e10s windows 
with addresses other than about:home.

	Kostas Reporter
	Comment 1 • 10 years ago

With the PS I meant:
I didn't notice crashes when minimizing & restoring e10s windows with focus to tab
with address other than about:home.

	Paul Silaghi, QA [:pauly]
	Comment 2 • 10 years ago

I couldn't reproduce in 31.0a1 (2014-04-28), Win 7 x64.
Please go to about:crashes and copy/paste here the crashes ids.
Also check if the issue occurs using Firefox in safe mode (with your addons disabled):
http://support.mozilla.com/kb/Safe+Mode

And on a new, empty profile:
http://support.mozilla.org/en-US/kb/Managing-profiles#w_starting-the-profile-manager

	Kostas Reporter
	Comment 3 • 10 years ago

Here is a report from just now (using my current profile, which btw as clean as new: no addons were ever installed)
https://crash-stats.mozilla.com/report/index/bp-125b73ef-292a-46b3-8ec1-8ee492140428

And here is with a new profile, having only the pref "layers.offmainthreadcomposition.enabled" enabled
https://crash-stats.mozilla.com/report/index/bp-c732dae5-387b-4293-9bb3-255d52140428


But, in both my initial and the newly created profiles,
after restarting in Safe mode (Restart with addons disabled) the crashes don't occur.


And, for what it's worth, the only listed addon is one that is installed by Internet Download Manager v6.19 (http://i.imgur.com/EP6HU3G.png)
and it's always disabled because it's incompatible.

	Jim Mathies [:jimm]
	Comment 4 • 10 years ago

Just got this today.

https://crash-stats.mozilla.com/report/index/1920138e-d668-49dc-91eb-286d32140430