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!

Avatar for Username

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

This thread was archived. Əgər kömək lazımdırsa lütfən yeni sual verin.

Do Nightly or beta releases overwrite existing installations, or are they independent and can exist together on one PC?

  • 2 cavab
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

MichaelGH
MichaelGH
more options

I am interesting in testing the stability of the shumway (HTML5 based) renderer, but do not want to risk blowing away release 25. If the Nightly release can coexist with the most current (stable) version that will make things easier.

I am interesting in testing the stability of the shumway (HTML5 based) renderer, but do not want to risk blowing away release 25. If the Nightly release can coexist with the most current (stable) version that will make things easier.

All Replies (2)

ideato
ideato
more options

Hello MichaelGH, see the-edmeister's Installing and running multiple versions of Firefox.

thank you

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Note that you can install Shumway as an extension in current Firefox 24+ releases.

You do not need a possibly unstable Nightly build.

Do a custom install and install each version in its own program folder to use multiple Firefox versions.

Make sure not to start Firefox after the installation has finished.
Create a new profile exclusively for each Firefox version.
Create a desktop shortcut with -P "profile" appended to the target to launch each Firefox version with its own profile.

See also these mozillaZine KB articles for information: