What is Firefox doing?

What is Firefox doing? If one watches Firefox's CPU consumption, one can see it consuming large amounts of CPU even while it's not being interacted with. On lower-spec computers, this can cause performance problems that significantly affect other applications.
Asked by: Guest \| Views: 241

Total answers/comments: 2

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Guest [Entry]

"After opening Firefox, it might be updating bookmarked RSS feeds. Using, for example, the Live HTTP Headers add-on, you can see that and any other traffic, even though it might seem nothing is being downloaded.

(And as a side note: if it's slow then vacuuming the database that holds the bookmarks and visited sites might help.)"

Guest [Entry]

"Look at your pages. Flash and animated images seem to be driving my Firefox instances. A lot of pages that used to be static seem to be adding Flash.

The other indicator of CPU usage I look for is the speed the fans are running."