# Why FF4.0 compatibility is so bad?

**URL:** <https://forum.kirupa.com/t/why-ff4-0-compatibility-is-so-bad/320465>\
**Category:** Uncategorized\
**Created:** [March 24, 2011, 8:11am UTC](https://forum.kirupa.com/t/why-ff4-0-compatibility-is-so-bad/320465 "2011-03-24T08:11:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vikiviki](https://avatars.discourse-cdn.com/v4/letter/v/8baadc/32.png) [@vikiviki](https://forum.kirupa.com/u/vikiviki)\
**Post date:** [March 24, 2011, 8:11am UTC](https://forum.kirupa.com/t/why-ff4-0-compatibility-is-so-bad/320465/1 "2011-03-24T08:11:54Z")

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i upgrade my FF3.6 to4.0, but many Plugins can not work, such as Google ordered lists, google Globle for Firefox.

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