Windows 7 x64
Chrome Dev Version 44.0.2403.9 dev-m (64-bit)
Chrome Canary Version 45.0.2412.0 canary (64-bit)
Phpstorm version 141.1224
1) Create a simple html page in Phpstorm
2) Open chrome dev (using this as my default broswer for normal web browsing like looking up coding examples)
3) With your html page open in Phpstorm choose View>Open in Browser>then choose canary or just click on the canary icon in the upper right corner of your page
Results: The page opens in chrome dev not in canary.
If I close chrome dev then when I choose to open in canary it works. The problem is when both versions of chrome are open it seems to not respect that you want to view a page in canary and not the default version of chrome.