If you are using RC1 on the N900, do yourself a favor and turn off disk caching. Set the preference “browser.cache.disk.enable” to false:
- Navigate to “about:config”.
- In the Filter field, type in “disk” to narrow the results down.
- Carefully tap the one that says “browser.cache.disk.enable” and press Enter on your keyboard. The preference should become bold.
- Restart your browser.
Sometime after beta 5, we’ve known that there was a regression with loading pages. After releasing RC1, our fellow hacker Doug solved the mystery: in beta 5, Firefox’s disk cache had effectively been turned off for the N900. We “fixed” the problem in RC1 and caused a major regression in page loading performance. Here’s the bug if you want to track it.
This is a band-aid solution for 1.0. Ultimately we want disk caching to happen outside of the main thread so that Firefox stays snappy during page load.