When a Decode JS function is called from a menu with one or several lines of encoded text highlighted, only part of the highlighted text is decoded. 
Example 1.
Sample line (without quotation marks):
"access.breakin=\u041d\u0435\u043b\u0435\u0433\u0430\u043b\u044c\u043d\u043e\u0435 \u0432\u0442\u043e\u0440\u0436\u0435\u043d\u0438\u0435"
is decoded to
"access.breakin=Нелегальное вторже\u043d\u0438\u0435"
Example 2.
Sample lines (without quotation marks):
"access.breakin=\u041d\u0435\u043b\u0435\u0433\u0430\u043b\u044c\u043d\u043e\u0435 \u0432\u0442\u043e\u0440\u0436\u0435\u043d\u0438\u0435"
"access.close=\u0414\u0432\u0435\u0440\u044c (\u0432\u043e\u0440\u043e\u0442\u0430) \u0437\u0430\u043a\u0440\u044b\u0442\u0430"
are decoded to:
"access.breakin=Нелегальное вторжение"
"access.close=Дверь (ворота) з\u0430\u043a\u0440\u044b\u0442\u0430"

It is possible to make the plugin decode all required text by adding extra irrelevant characters after meaningful part, but this is not too convenient. Some users may not be able to find this workaround.

That's a bug, all right.

I've fixed it in commit [3aad6bc43c], and will try to release a new version on Sunday.