Misleading Description Rated 3 out of 5 stars
This add-on does not look at all like the screen shot in the description. In fact, what you get is a page headed STARTME, with a bunch of links to the usual mix of web services. In order to personalize, you must register with them. I have uStart.org as my homepage and it provides much more by way of options & personalization, without requiring registration.
Another annoying thing about this add-on is that whenever you try to open a new tab, you are immediately taken to the STARTME page, so you get no benefit from the Firefox feature that shows pages you've looked at recently. Also annoying: because the add-on has a name that is not shown anywhere on the screen, when you go into your list of add-ons to delete or disable it, you tend to be looking for STARTME, not YOURLS. The name of the add-on should be changed to its current name.
If this is what you want, it seems to do the job, (hence three stars), but you should know more about what you are getting.