Awesome performance. I like it very much.

Best tool for searching. Awesome add-on. Like it very much.

Super add-ons. Perfectly do it works as describe. Thanks!

Highlight Keywords is very useful tool. Its make my works easier.

Very helpful tool. I like this addons very much.

Wow this extension is really good! Nice..

Now its help me to pin any keyword to highlight them.

Keyword highlighting is much easier now .
thanks

This is the best Keyword extension i have ever come across. Big ups,
Thanks.

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just doesnt work and told it is spyware Why are firefox advertising it ?

Te instala buscador rspark.com

This crap change you start website for rspark.com

try hitmanpro or malwarebytes for remove these.

Adware.

Installed spyware, redirected my default page to some lousy search engine!!!!

This add-on installs spyware.
It is the worst add-on.

Does not work. Suspicious, after reading other reviews.

Search.rspark.com redirect

Spyware : rspark

can not work at all!

Comes with https:// search.rspark.com/?hkw

I love it and i hope that duckduckgo will be added soon.
Thanks