The Tips - Mac Kung Fu - page 58

reportedly happens on older Macs and first-generation Macs featuring a
Retina (high-definition) display.
The technology behind this is called smooth scrolling , and to turn it off, you
should open a Terminal window (open Finder, select the Applications list,
and then in the list of applications double-click Terminal within the UTILITIES
folder), and type the following:
DEFAULTS WRITE -G NSSCROLLANIMATIONENABLED -BOOL NO
Log out and back in again to see the changes.
You can reactivate Smooth Scrolling using the following command, again
issued in Terminal and followed by logging out and back in again:
DEFAULTS DELETE -G NSSCROLLANIMATIONENABLED
Tip 55
Save Safari Tabs When Quitting
Each time Safari starts, it shows the home page (or whatever option you
selected under the General tab within Preferences).
However, there's another start-up mode, and I find it very useful indeed. It
will automatically open the tabs (or web page if no tabs are in use) that were
active the last time Safari quit. You can do this manually without changing
any settings by clicking History→Reopen All Windows From Last Session,
and Safari automatically does this should it restart after crashing, but
changing the following secret setting makes this an automatic choice upon
every start-up of Safari.
Enabling Tab Memory Across Sessions
Quit Safari, open a Terminal window (open Finder, select the Applications
list, and then in the list of applications double-click Terminal within the UTILITIES
folder), and type the following:
DEFAULTS WRITE COM.APPLE.SAFARI NSQUITALWAYSKEEPSWINDOWS -BOOL TRUE
Restart Safari, then quit it, and then restart it. From this point on, all tabs
will be remembered across restarts.