Flash Player freezing my Mac pro 2009

Question

Hi all, has anyone been experiencing a complete freeze of their Mac pros after using Safari or FireFox for a few days?
I have a early 2009 Mac Pro 2.66 Ghz Quad Core which Im running Maverick 10.9.4 and the latest Flash Player update but still after a few days using safari and Firefox
my Mac freezes completely and I have to do hard reboot. According to Adobe the last Flash update was to solve this problem with earlier Macs.
Has anyone else been experiencing similar problems?

Answer 1

If you're sure you've installed the latest version of Flash, take each of the following steps that you haven't already tried. After each step, relaunch Safari and test. For a "missing plug-in" error, start with Step 4.
1. If you're getting a "blocked plug-in" error, then from the menu bar select
 ▹ System Preferences… ▹ Flash Player ▹ Advanced
and click Check Now. Quit and relaunch your browser.
2. Triple-click the line below to select it:
/Library/Internet Plug-Ins
Right-click or control-click the highlighted text and select
Services ▹ Open
from the contextual menu. A folder should open. Delete the following item, or anything with a similar name, if present:
Flash Player (failing).plugin
You may be prompted for your login password.
3. Re-download and reinstall Flash. Download it from this page:
Adobe - Install Adobe Flash Player
Never download a Flash update from anywhere else.
4. If you get a "missing plug-in" error, select
Safari ▹ Preferences... ▹ Security
from the Safari menu bar and check the box marked Enable plug-ins.
5. Select
Safari ▹ Preferences... ▹ Extensions
from the Safari menu bar. If any extensions are installed, disable them.
6. In the Safari preference window, select
Privacy ▹ Remove All Website Data
Close the window. Then select
 ▹ System Preferences… ▹ Flash Player ▹ Advanced
and click Delete All. Close the preference pane.