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Great Add-on Rated 5 out of 5 stars
While useful for different languages, I’ve been using it to insert mathematical symbols such as the integral symbol ∫ when answering questions in Yahoo Answers.
Note: Users should be informed that you can insert symbols directly in the necessary text field rather than using the Unicode.
For example, is instead of "i=%u222B|" one can just type "i=∫|"