DNArboretum
Thanks to a posting on the Yahoo! DNA-Newbie message board (Topic 49775), I'm now aware of a great FREE extension for Google Chrome, which was released in April 2014 by "neanderling" (if you have a 23andMe account, see thread Here). I hadn't seen it mentioned elsewhere, so thought a blog posting would spread the word, as I'm certain that others will find it useful too.
Let's face it, the trees at 23andMe and Family Tree DNA (FTDNA) are pretty awkward and clunky. DNArboretum quickly extracts information from a displayed tree and presents it as a list based on Ahnentafel number, showing the name and, if included on the tree, the year and location of birth and death. You can then either skim down the list, or search for names or locations. This is so much easier than trying to wade through the trees on either 23andMe or FTDNA. Unfortunately, it only works on the old-style trees on 23andMe – for anyone with a tree that is now on MyHeritage, the only way a tree can now be set up (see 23andMe and MyHeritage Collaboration), DNArboretum doesn't work, but there are still some old-style trees on 23andMe if people didn't "upgrade" to a tree on MyHeritage. When available, at least 9 generations are displayed at 23andMe and up to 15 generations at FTDNA.
The other nice feature of DNArboretum is that you have the option to show different inheritance modes: all ancestors (autosomal mode), or only those on the X-chromosome DNA, mitochondrial DNA, or Y-chromosome DNA lines.
