I forgot to confirm that setting dom.ipc.plugins.enabled.libflashplayer.so to false resolved the problem for me, but (obviously) only for pages that have flash contents.
I've developed a dummy HTML page with two links. The first one brings a plain HTML page (no JavaScript, no Java, no Flash) on a popup window and the second one brings a JavaScript alert window.
When I click the first link, firefox freezes.
When I click the second link, the alert window appears without any problem.
I've made this test to make sure the problem is only when you need to bring a popup window, and not when you need to execute JavaScript code (because to bring a popup window you need to execute JavaScript code)
I forgot to confirm that setting dom.ipc. plugins. enabled. libflashplayer. so to false resolved the problem for me, but (obviously) only for pages that have flash contents.
I've developed a dummy HTML page with two links. The first one brings a plain HTML page (no JavaScript, no Java, no Flash) on a popup window and the second one brings a JavaScript alert window.
When I click the first link, firefox freezes.
When I click the second link, the alert window appears without any problem.
I've made this test to make sure the problem is only when you need to bring a popup window, and not when you need to execute JavaScript code (because to bring a popup window you need to execute JavaScript code)