addons' nightly repositories
Some Firefox Addons nightly repositories, maybe works for lastest FF
Adblock plus nightly build: https://adblockplus.org/devbuilds/adblockplus/
Element Hiding helper nightly build: https://adblockplus.org/devbuilds/elemhidehelper/
Grease monkey dev build: https://arantius.com/misc/gm-nightly/
DownThemAll! nightly build: http://code.downthemall.net/nightly/
Firefox4.0 beta2 pre 感觉又像回到等待 3.0 release 的时期了，天天 update，天天和扩展兼容性作斗争。 生命不息，折腾不止。