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» e10s
Rikaichan 2.09 will not work with newer versions of Firefox with e10s enabled. Please install Rikaichan 3.00 (when available; currently queued for Mozilla's approval) or Rikaichan 3.00rc2 from the beta channel instead.

» Release channel
» Beta channel

» Rikaichan 3.00rc2
» Rikaichan 2.09
» Installing in Thunderbird?

Dictionary Files

Please install one or more dictionary files to use with Rikaichan.

Unsigned Dictionary Files

The files listed below are updated more frequently than those listed above, but are not "signed." These files will only work on Firefox versions that do not use signature verification or on versions that will allow you to disable it. Examples: Firefox ESR, Firefox Developer Edition, "Unbranded" Firefox.

Thunderbird can use both signed and unsigned addons.