SeaMonkey has a URL link attached to its throbber. By default, it points home (Mozilla.org). This can be easily changed to any URL you wish, so if you frequently visit a particular web page but dont want it as your homepage, this is a fast link.
Open SeaMonkey and in the address bar type about
:config.
Scroll down to browser.throbber.url and double click on it.
An edit window will open allowing you to type in any url you wish.
Click OK
Now all you have to do is when ever you want to navigate to the Webpage, just click on the throbber.
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All of the SeaMonkey Suite throbbers have different addresses, here they are.
browser.throbber.url
messenger.throbber.url
compose.throbber.url
addressbook.throbber.url
How to Change SeaMonkey's Throbber URL 
