我试过了http://www.oxymoronical.com/web/firefox/FindBarRX，但不支持 FF 3.6.7。正在寻找独立于操作系统的扩展
答案1
您可以通过执行以下操作来尝试使用 oxymoronical 插件 -
1. download the xpi
2. change the extension to zip
3. extract the install.rdf
4. change em:maxVersion value to 4.0.*
5. replace the install.rdf in the zip with the one you just edited.
6. change the extension of the download back to xpi
7. open in firefox.