# Animation crash in Firefox, OK in IE and Opera

**URL:** <https://forum.kirupa.com/t/animation-crash-in-firefox-ok-in-ie-and-opera/281818>\
**Category:** Uncategorized\
**Created:** [February 13, 2009, 1:09pm UTC](https://forum.kirupa.com/t/animation-crash-in-firefox-ok-in-ie-and-opera/281818 "2009-02-13T13:09:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![umala](https://avatars.discourse-cdn.com/v4/letter/u/c2a13f/32.png) [@umala](https://forum.kirupa.com/u/umala)\
**Post date:** [February 13, 2009, 1:09pm UTC](https://forum.kirupa.com/t/animation-crash-in-firefox-ok-in-ie-and-opera/281818/1 "2009-02-13T13:09:00Z")

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I am building a full Flash website. There is a tween motion, which under IE and Opera browser works as supposed but sometime STOP in Firefox. In that scenario, I can refresh browser and it seems to works (maybe just random). How is it possible?