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由 hayalci 发表于 Oct. 19, 2009 · 永久链接

An excellent add-on for users of google contacts. Works without any problems.
Supports up to four e-mail addresses.
Detailed settings are provided.

Most importantly, the developer has sufficient help and troubleshooting text at the web site (see the wiki).
He also provides excellent support through the forum at his web site.