FFox : Back-Forward Rápidos

chase's blog - Fastback Inside!: "For those of you still reading that remain undaunted, follow these steps to give bfcache a whirl:

1. Download and install the latest Firefox trunk nightly.
* Linux
* MacOS X
* Windows
2. Run Firefox and type 'about:config' in the location bar.
3. Right-click on the main content area.
1. Select New
2. Select Integer
4. Enter the preference name 'browser.sessionhistory.max_viewers' and click OK.
5. Enter '5' and click OK.
6. Shutdown and restart Firefox.
7. Take the feature for a test drive!
1. View a large web page with lots of elements, like planet.mozilla.org or mozillaZine feedHouse.
2. Next, go to another page, like Slashdot.
3. Click Firefox's Back button. If the preference is properly enabled, the previous page should appear instantly.
4. Click the Forward button to see it work again with Slashdot.

If you find a bug in this feature, or if you find a problem with viewing pages even while bfcache is pref'd off, please report a bug on the problem and place it under the 'History: Session' component.

NOTE: Don't confuse the 'browser.sessionhistory.max_viewers' pref with 'browser.sessionhistory.max_entries'. max_viewers is the pref that needs to be set. You must create 'browser.sessionhistory.max_viewers' so it holds an integer value (5 is a good start) as by default it's unset."