BIBLOS Online Parallel Bible Study Tools offering a wealth of resources with some 25 Bible Study Tools including Multilingual option.
BLUE LETTER BIBLE
The Blue Letter Bible Online with concordances, lexicons, dictionaries, commentaries, maps, Bible versions, and Strong’s numbered reference tool.
Bible Search Toolbar “Add-On” extension for Mozilla Firefox linked to BibleGateway.
Option of 2 translations side-by-side for Parallel Bible Passage and Keyword Search (in context).
Bible Toolbar is maintained by Karl and Denise Herrick who are serving as missionaries.
Click on the Bar below to visit their site; therein you will find Screenshots and Options for Bible Toolbar in addition to Download from Mozilla.