Firefox missing mouse clicks

Question

I have updated both my desktop (Win7) and my laptop (WinXP) to Firefox 9.0.1 (from 8.0) and both are suffering from this issue.
about 99% of my left mouse clicks seem to get ignored, but middle and right are both perfectly find. Left button operates correctly in all other programs.
The mouse works correctly in the taskbar/menus/tab bar/scroll bar, but stops as soon as I am inside the page display area.
Sometimes if I click continuously for 10 seconds I get an ok click, or sometimes I have to use a different program for a minute and then come back, then I can get 1 or 2 clicks before it stops working.
Currently navigating using tab, and shift+tab.
This is very very annoying, has anyone else noticed this after update? or have any ideas?

Answer 1

garry wrote:
My current issue is that if the simulator is frozen (system time is cycling within a 100ms window) mouse clicks on buttons are getting lost.OK that's an entirely different kettle of fish. Firing an action does require that the mouseReleased be later than the mousePressed, and that both be over the button.
Consider ths scenarion in any normal application that doesn't interfere with the system time. The user presses the mouse over some other component, drags over to the button and releases it. Next, the user presses the mouse over the button, drags off the button and then releases it. This isn't supposed to trigger the button's ActionListener#actionPerformed.
With the system time looping, how does the runtime know that this isn't the case?
I can see the button border change when I move the mouse over the button,that's rollover, triggered from mouseEntered. timing is not an issue.
but the mouse click is lost (button does not get depressed).See above.
Sometimes it works fine for a few mouse clicks and other times several mouse clicks will be lost in a row.See above.
It seems random.In a way, it is.
This seems to be more prevalent with buttons than capturing a mouse click on a panel where I do 2D drawing. Not sure why.Could be just human susceptibility to guesswork, or may actually have something to do with the occasional additional processor cycles involved in the custom painting. Since you haven't described the frequency of repainting nor its complexity, that guess is my susceptibility to guesswork ;)
When I put the simulator into Run mode, it works perfectly, never missing a click.Of course it will.
Anyone out there have any insights into what might be going on under the hood inside Java/Swing with mouse events and the system clock?See above.
db