I originally have this useragent (normal DesktopPC): 

```
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:16.0) Gecko/20100101 Firefox/16.0

```

but if I usually modifiy it to: 

```
New -> String
general.useragent.override
Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)

```

in Firefox. Because I don't want to use my original useragent (because it could increase "security"... - to not to use the original..), but I don't want to break compatibility with websites.. but this option with "googlebot" useragent is not always the best solution because ex.: I can't check Gmail

But: I also don't want to use useragents like: "Mozilla/9.9 (X99; Ubuntu; Linux i686; rv:99.9) Gecko/99999999 Firefox/99.9" - because there are too unique.. so I could be easy identified..

**Q: What should I use as useragent to increase security?** I can't create a script that automagically modifies the useragent to the most commonly used one.