Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

ابحث في الدعم

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

Can you install Firefox Quantum to run beside Firefox?

  • 2 (ردّان اثنان)
  • 75 have this problem
  • 1 view
  • آخر ردّ كتبه Haxxsaw

more options

I see where Firefox Quantum Beta can be downloaded. I currently use Firefox. I would like to try Quantum, but do not want to risk losing all of my current functions in Firefox. If I choose to execute the Quantum installer, will it write over the top of my current Firefox, or give me a new browser to use?

I see where Firefox Quantum Beta can be downloaded. I currently use Firefox. I would like to try Quantum, but do not want to risk losing all of my current functions in Firefox. If I choose to execute the Quantum installer, will it write over the top of my current Firefox, or give me a new browser to use?

الحل المُختار

hi, installing firefox quantum during the normal installer would upgrade you existing firefox installation. if you just wanted to try it out at this point, you could use the portable version of firefox beta from http://portableapps.com/apps/internet/firefox_portable/test and then update that to the latest version...

Read this answer in context 👍 35

All Replies (2)

more options

الحل المُختار

hi, installing firefox quantum during the normal installer would upgrade you existing firefox installation. if you just wanted to try it out at this point, you could use the portable version of firefox beta from http://portableapps.com/apps/internet/firefox_portable/test and then update that to the latest version...

more options

Thanks Philipp.

I use your solution to give it a try.