http://optimoz.mozdev.org/tweaks/
http://downloads.mozdev.org/optimoz/...tweaks_0_3.xpi

New:
# "Lock Sidebar" button to temporarily prevent the sidebar from closing.
# Option to enable sidebar autohide/-show only when the window is maximized.
# Alternative autohide mode: Hide the sidebar when the cursor is held at the left side of the window, not when it's moved back to the web page. You can activate this setting via Optimoz Tweaks' options window.
# Fix: no longer shows the sidebar when a web page is using frames and the cursor is near a frame border.

用過 Firefox 的應該知道這是什麼....
簡單的說就是 Sidebar Autohide
一直困擾我的 frame 問題已經解決了...
還在用 0.2 的,我想應該可以去更新了...