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How do I go back to old verson of firefox 3.6.16??

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Question Installed firefox 4, have digitalpersona for fingerprint security and it will not work now on this 4.0 version. Digital persona is more important than firefox 4.0 new version. How do I go back to old verson of firefox 3.6.16??

Question Installed firefox 4, have digitalpersona for fingerprint security and it will not work now on this 4.0 version. Digital persona is more important than firefox 4.0 new version. How do I go back to old verson of firefox 3.6.16??

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You can download Firefox 3.6 from http://www.firefox.com/all-older.html

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"Thank you for contacting DigitalPersona. There will be no update releases for DigitalPersona Personal in the future. There will be no updates for Firefox 4 nor Internet Explorer 9. IF they work they work, if they do not work with DPPersonal, then you will have to decide to either keep DPPersonal and forgo Firefox 4 or IE 9, or vice versa. DigitalPersona is leaving the consumer market and is focusing on business applications. In fact, DigitalPersona Personal will not longer be supported after Mid-April of this year. We apologize for any inconvenience this might cause. Sincerely, Tech Team "


You could try this extension.
https://addons.mozilla.org/en-US/firefox/addon/fingerfox-se/

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The New Version Of Firefox Is A Shell Of The Old ! Over half of my bookmarks "WOULD NOT" connect and what did connect was a display of TRASH ! What a mess ! Sorry Mozzilla ! But You FAILED BADLY ! Whoever sold you on this New Version Should Be Fired ! PERIOD ! Faster ? NOT ! It's far slower & a complete MESS ! Love Firefox ! But this new version is a flat out Failure !

I FINALLY Got The Older Version Back After Several Attempts ! Here Is How ! And NO Problems At All : You can download the Older Version We ALL Love At:

" SoftSonic " Downloads.

It totally Removed The New Trash Version & Gave Me Back My Dignity !!!! Everything Plus ALL AddOns Are GREAT ! Way Better & Far Faster & Accurate !