Chrome version 42 and later is no longer allowing NPAPI by default, which is required for Java Bookmarks.
Furthermore, with Chrome 45, NPAPI will be completely removed.
For Chrome 42 you can enable this NPAPI by opening a chrome browser and typing this:
chrome://flags/#enable-npapi
Click on the "Enable" link.
For more information:
https://java.com/en/download/faq/chrome.xml
https://www.chromium.org/developers/npapi-deprecation