Rated 4 out of 5 stars
Developer bills this as a privacy add-on. Too bad, because it has another important function. For those setting up a presentation using a web browser, Renamizer compensates for sites which fail to provide brief informative titles. A forum site that lets post-specific pages get labeled "title", for example. If I want to have five tabs open so as to show these posts to an audience (in my case, it's in a university classroom), I can name the tabs clearly and later pull any one of them up without poking around clumsily.
If developer had this in mind, he/she would de-emphasize "random rename" option, and further develop the algorithms for automatic renaming.
For example, scan page for string "Subject: " and name according to the next five words (or less if <br>/<p> is encountered.