OT: Is it just me or is Firefox slowing worse?

[joe at actionline.com]

Is it just me or is Firefox slowing down worse all the time?

Is there anything (new) that can be done to speed it up?

I've made all the changes in about:config that I know to make.

Or ... is the problem (also) my computer?

Is there some way to clear memory other than to have to reboot?

Day by day, everything just seems to get slower and slower
until I finally give up and reboot and then things work
a lot better (just for a while).

I'm using Linux Mint.