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Firefox Browser Usage and Support Forum

Firefox illegal operation
when loading flash files

 10:09 am on Jun 7, 2004 (gmt 0)


I get an illegal operation dialog box whenever I try to load a page with a flash file embedded. The message reads:

"The plugin perfomed an illgal operation. You are strongly advised to restart navigator."

I have uninstalled it and removed the flashplayer plugin and reinstalled it all from scratch, but it still gives me the error.

At the moment it pretty much makes firefox unuseable for me as I look at a lot of pages with flash on them (for better or worse).

Do anyone else know of a fix for this bug?




 11:00 am on Jun 7, 2004 (gmt 0)

Which OS? I've heard of problems with the Flash plugin on Mac based Firefox (and Safari for that matter), but I've not seen a similar bug documented for IE platforms.

There is a problem with using certain actionscript commands in Flash (a memory leak caused by LoadVars() I think) that could also be causing this. This causes Flash to hog huge amounts of CPU time... Interestingly enough the solution I saw for this was to hold down the mouse button!


 11:37 am on Jun 7, 2004 (gmt 0)

I'm running firefox in Windows XP Pro.

I get the illegal operation as soon as the page starts to load.


 11:39 am on Jun 7, 2004 (gmt 0)

It seems to be all pages that have a flash file on that cause the error, including ones that I have made and I havent used the LoadVars() action.


 11:43 am on Jun 7, 2004 (gmt 0)

Hmmm.. So you've removed FireFox and Flash completely from your machine and reinstalled both of them? Which Flash and Shockwave player versions are you installing?

If a reinstall of the latest versions of FireFox and Flash/Shockwave doesn't fix this then I'm inclined to think that the problem is on your OS....


 11:49 am on Jun 7, 2004 (gmt 0)

Yes I have uninstalled and reinstalled both many times to no effect. The Flash player works fine on IE and Opera, but my system could be getting confused between the different versions of flashplayer required for different browsers...

What would be the best steps to take to completely remove the flash player from all browsers and start from scratch?

I have IE, Opera and Firefox installed.

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