Rated 2 out of 5 stars

Hello, When I highlight 2 words next to each other and chose 'Highlight Words' then both words I selected show up highlighted all over the page in two different highlighter colors. This is good.
However, if I highlight one word, then choose to highlight a second word elsewhere on the page I lose the first word's highlighting :(
Maybe I'm doing something wrong?
Also, as others have written I need a white-list of terms that will always show-up highlighted no-mater the page or domain.
The perfect place for the white list would be it's own sidebar with choices, colors and triggers.
Cheers

This review is for a previous version of the add-on (0.3.3).