This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

CAN I RUN 2 VERSIONS OF FIREFOX (4.0 & 3. SIMULTANEOUSLY ON MAC OS X? HOW ?

  • 1 èsì
  • 3 ní àwọn ìṣòro yìí
  • 11 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ cor-el

more options

How can I install 2 versions of Firefox, 4.0 and an older one, simultaneously on my Mac under OS X 10.6.7 ?

How can I install 2 versions of Firefox, 4.0 and an older one, simultaneously on my Mac under OS X 10.6.7 ?

All Replies (1)

more options