What is your operating system & version?
Same for me. The process always stops with "Actionlist not found".
I followed all instructions from the help page http://helpx.adobe.com/flash-player/kb/installation-problems-flash-player-mac.html
and tried out also "Troubleshoot: Progress bar hangs ..."
But I am stopped at point 4 of the solution: "Show content - Resources" does not show me "Adobe Flash Player.pkg". The folder "Resources" only contains: "app.bundle", "app.icns" and a folder named "en.lproj"
Mac OS X 10.8.3
Downloaded version of Flash Player 11.7.700.169 (Max OS X, German, Safari)
Mac OS X 10.7.5
I ran the install and it "appeared" to work but it is not on my computer. The only thing that is on my computer is the "install manager." I tried to open a link on the internet that requires the flash player and it gave me a link to install it...so, I guess that means that it did not actually install it when I ran it.
Did you look here?
/Library/Internet Plug-Ins/Flash Player.plugin
If you are using Safari, can you please verify that "Enable Plug-ins" is checked in the security tab of Safari's preference dialog?
I am using Firefox.
The only thing I get when I search my computer that has anything to do with a flash player plug in is an a folder named Flash Player.plugin. When I open that I get a box labeled "Flash Player.plugin -- bash -- 80x24 with a statement in it that reads:
Last login: Thu Apr 11 20:48:01 on ttys000
Duane-Smiths-MacBook-Pro:Flash Player.plugin home$