I have noticed that sometimes when I go to a web site that I cannot use the back arrow to view the previous viewed web page. Hitting the back arrow just closes all windows. This seems to be browser independent. Why is this? Is there a workaround?
Correction: The back arrow is enabled by default. When you find a web page for which it the back arrow is disabled, the developers of the web page has affirmatively disabled the back arrow.
Also, it may be a difference if you are choosing a link with a right-click to open a link in a new window - which, by entering a new window, would not usually have an active back command.