A group of "political activists" has started an aggressive campaign to get browser users to switch from Internet Explorer to Mozilla's Firefox.

The Explorer Destroyer campaign, takes advantage of a new program by Google to pay users US$1 for each referral to Firefox made through Google Toolbar..

"You already want people to switch to Firefox. Now's the time to get serious about it," according to the site. "Google is paying $1 for each new Firefox user you refer. ... Now you can advance your ideals, save people from popups and spyware hell, and make some serious money."

Google did not return calls seeking comment for this story, but the search giant offers a standard $1 per user referral fee to websites that generate new downloads of Firefox with the Google Toolbar.

The Explorer Destroyer group offers website owners a scripting technology that will detect if a visitor is running IE. If so, an alert will appear directing them to download Firefox either to view the site better or at all. Whenever a visitor to a website using the group's technology switches to Firefox from IE, the owner of the website will get the referral fee if they have signed up for Google's AdSense program.

There are three types of alerts site owners can put on their page - "gentle encouragement," "semi-serious" or "dead serious."

If a website owner chooses "gentle encouragement," visitors to a site who are using IE will see a banner across the top of the page that encourages them to download Firefox. A "semi-serious" site will put up a splash page encouraging a user to download Firefox, with a link for downloading Mozilla's browser as well as a link to the Web site.

Those who choose the "dead serious" rating actually block users with IE from viewing the page, informing them they must install Firefox to view the site.

In addition to the Explorer Destroyer Web site, where users can download the scripts for their sites and learn more information, the group also has launched another website that parodies IE and provides users with reasons why they should switch to Firefox.

One reasons for switching, according to the site? "It will make Bill Gates soooooooooo mad." "Seriously- super, super mad," the site goes on to say. "And even more than Bill, let's think about Steve 'I'm going to ... kill Google' Ballmer for a second. If there's anyone that's going to absolutely blow a gasket when they see this website, it will be him."

Other reasons the site offers for switching from IE to Firefox include, "Reduce your weekly family and friends tech support load to eight hours" - a reason that pokes fun at various problems users encounter when using IE - and "If we knew web designers would hurl themselves off it, we wouldn't have put the Golden Gate bridge so close to San Francisco," which cites developer difficulties in making websites IE-compatible.

A Mozilla spokeswoman declined to comment on the group's efforts and Microsoft did not immediately return requests for comment.