>>936
overlay.jsの変更部分を元に戻す
https://github.com/gomita/foxage2ch/commit/3ad61e4c8ec62d8c17e27c043033a0529ad061f6
73-74行目
aForceOpen ? SidebarUI.show("viewFoxAge2chSidebar")
: SidebarUI.toggle("viewFoxAge2chSidebar");
↓
toggleSidebar("viewFoxAge2chSidebar", aForceOpen);