Are firefox addons a threat?

[virtualmisc]

I installed the Firefox addon search status 1.3 to see the page rank of the pages I visit. Later the day i noticed 5 or 6 names on my toolbar just like shortcuts. When i tried to right click it new tabs opened with pages. Are these addons dangerous?

[Laser]

I installed the Firefox addon search status 1.3 to see the page rank of the pages I visit. Later the day i noticed 5 or 6 names on my toolbar just like shortcuts. When i tried to right click it new tabs opened with pages. Are these addons dangerous?

Possibly; it would depend on the source of the addon.

I have only ever used addons from mozilla.org after reading the reviews, and so far so good.

[Adamsappleone]

If you're concerned you can download these 2 add-ons for Firefox for more safe surfing;

http://www.siteadvisor.de/download/windows.html

http://www.browserdefender.com/download/index/version/ff/

I use both and they're free.

[AirForceOne]

I don't think search status 1.3 caused this problem. This add-on rates 5 stars on firefox site. Of course, some 3rd part add-ons might cause security problems.