Parent.opener don´t work

I have a problem in FireFox (10.0.2).
I´m java developer.
I have two windows: A with 2 frames A1 and A2
B with 2 frames B1 and B2
O frame A1 call a new window B (with rames B1 and B2) .
When I in B1 and want to call A or A1, give a error.
"parent.opener" is null.
In Chrome and IE, return window A.
Thank You.
João Guilherme Mosconi

Select (triple-click to select the entire line) then control-click and from the contextual menu that appears, select Services > Reveal in Finder:
~/Library/Preferences/com.apple.finder.plist
Drag the selected file to the Desktop.
Repeat with the following line
~/Library/Saved Application State/com.apple.finder.savedState
Force the Finder to quit by following this procedure. It will re-launch on its own.
If the Finder is so unresponsive that you cannot perform the above, please attempt it after starting your Mac in "Safe Mode":
Safe Mode or "Safe Boot" is a troubleshooting mode that bypasses all third party system extensions and loads only required system components. Read about it: Starting up in Safe Mode
You must disable FileVault before you can start your Mac in Safe Mode.
Starting your Mac in Safe Mode will take longer than usual, graphics will not render smoothly, audio is disabled on some Macs, and some programs (iTunes for example) may not work at all.
Merely starting your Mac in Safe Mode is not intended to resolve the problem, it's to observe its performance without certain additional components.
To end Safe Mode restart your Mac normally. Shutdown will take longer as well.

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Parent.opener don´t work

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