Flash at snail’s pace on Firefox
Yes, I am also one of those troubled souls when it comes to getting your project work cross-browser. It drives me crazy getting things to work in the exact same way on IE and Firefox.
Problem 1:
One of the flash intro’s I made ran very slowly on Firefox. It worked just perfect on IE. The intro was jerky and gave a feeling that something heavy was getting downloaded in the background.
Fix:
Remove “Transparent Windowless” option (if you have selected it) when exporting your flash movie and it will work like a charm on Firefox. Worked for me, should work for you too
Problem 2:
I exported a flash movie as 100% to fit perfectly to the browser and resize as and when the browser was resized. It worked just perfect on IE. In firefox the movie got loaded as a small box. It was not even the actual movie size.
Fix:
Remove the < !DOCTYPE> tag from the page where you are showing the flash movie. The movie will now fill the browser and resize as you resize your browser.
December 9th, 2005 at 12:43 am
Thank you so much! You’ve helped me to solve firefox resize problem!
Thank you.
:) 
What a stupid bug! I was going crazy for two days, because of this!
December 9th, 2005 at 9:44 am
My Pleasure
:Vaishali.
January 5th, 2006 at 10:07 pm
Thank you so so so so Much!!!! That tip solve my resize problem!! I love You!!! Thanx a lot!!!
January 8th, 2006 at 9:50 am
My pleasure again
February 23rd, 2006 at 12:23 am
a quick fix I’m sure but non the less a saviour right now, why is it so f’n difficult to be W3 correct?
March 13th, 2006 at 1:20 am
Wow…. would’ve taken me forever to figure out that bug….Thank you much!
January 17th, 2008 at 7:17 pm
Yes, thank you for the resizing tip for Firefox. I was wondering why my flash movie was showing up so tiny.
Also, the transparent windowless tip was helpful, too. My flash movie was “jerky” in firefox and I couldn’t understand why.
Thanks again.