Use of Selenium along with variants

	Selenium IDE	Selenium Remote Control	Selenium Core	Selenium Core HTA
Browser Support	Firefox Only	Many	All	IE Only
Requires Remote Installation	No	No	Yes	No
Supports HTTPS/SSL	Yes	Yes*	Yes	Yes
Supports Multiple Domains	Yes	Yes*	No	Yes
Requires Java	No	Yes	No	No
Saves Test Results to Disk	No**	Yes	No	Yes
Language Support	Selenese Only	Many	Selenese Only	Selenese Only

* = Experimental support is available in Selenium RC
** = Theoretically possible, but not currently implemented

Selenium IDE: First time user recommended.

Selenium Core: Requires hand written tests.

Selenium RC: More advanced users.