Flash Plugin

[Ace.....]

https://addons.mozilla.org/en-us/fir...don/flash-aid/
try this in firefox
its changes will be applied to all browsers using adobe flash

I agree.
I had similar probs, and flash-aid solved them completely (what a relief it was).
That was until pepper flash came along.

I couldn't highlight stuff or write in text fields.
So if you get flash sorted with flash-aid, and you experience the probs stated, you may need to disable pepper flash.
There's a link at the bottom that has worked for a few people, including me.