I’m used to install some add-ons every time I install Firefox.
Here’s a couple: The “Netcraft Anti-Phishing Toolbar” and “ShowIP”.
The Netcraft Toolbar shows some useful information of each page you browse; Risk Rating, First Time Seen and a Rank of popularity (click screenshots to enlarge):

The Risk Rating bar will show red to green according to whether the site is known for phishing.
Waxborg is showing some red there because of the No-IP domain name. I happened to choose their dynamic IP name service long ago and I haven’t changed it since.
Probably I will have a “slightly red” site as long as the domain name “servepics.com” is used.
If you click on the Toolbar link “Rank” you will see a list of sites around the same popularity level:

There I was utterly surprised to see that my site is more popular than the Slovakian Toyota!
And if you click on the link “Site Report” you will see “What’s that site running?” I.E. more details of the site, its operating system and so on. There’s also a link in the report to the site’s uptime graph of different periods of time.
The Showip add-on will show the IP address of each site you visit in the lower right corner of your browser:

The real IP shown there will tell you where you really are browsing.
Vahis