How to switch to previous version of mozila using developer tools?

firefox google-chrome opera ie-developer-tools
Ishan Dhingra picture Ishan Dhingra · Apr 3, 2012 · Viewed 6.9k times · Source

I am working on a project, which is under testing now. Need is to make Website compatible with all Modern as well as at-least make them compatible with 2 older versions of every Major browsers.

For this I used IE F12 tools in IE, to Switch to IE 9,8,7 view.

Now is there any Tool for Firefox, Chrome, Safari and Opera, which let me switch to its previous version for testing?

Answer

Wladimir Palant picture Wladimir Palant · Apr 3, 2012

There isn't - you need to install different versions of the browsers. This is absolutely unproblematic with Firefox, just specify a different installation path for the old version (note that only one Firefox instance can run at a time unless you create different profiles and use -no-remote command line flag). I think that it is similar with Safari and Opera. Chrome is complicated however, you simply cannot install a version older than the current release - with some luck you can find it on PortableApps.com (it will be slightly broken). You can have Chrome versions from different channels (e.g. Release and Beta) but you have to install them under different user accounts.

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