One of the function is really great: Clicking on the addon icon, choosing the output language, and then highlighting a word, selecting the context menu item for wordtranslate, and then, the translation appears. But you could make it with less clicks, with a shortcut. And The "powered by Yandex" item in the menu is not really helpful, as it opens the Yandex translation site in a new tab, but doesn't pass the translation to the tab, so you have to type it again. I really only need the context translation, so I hope you'll add a mean to remove the 2 other menu items through the options pages.
There's 2 annoying bugs, the context menu translation doesn't update, and sometimes stay on the previous translated word or expression. And the outuput language always stays to "African", please, fix it so it can remember the last selected language, and add the ability to select only a few languages in the options pages. I hate to browse a long list.