From November 10th, 2011 to August 6th, 2013, 67% user give 5-star rating, 33% user give 2-star rating. for fulmo chrome extension.
Using with redmine 2.3 This extension is VERY easy to use. I love the editor, and the ability to select just a portion, the visible, or the entire page is amazing. Very good extension. Thank you!!
Works fine with redmine 1.4 great addition
Looks promising and mentions JIRA in the overview but currently doesn't' work. I hope you add/fix JIRA support soon.