"Only Works Once" returns Rated 3 out of 5 stars
I'm on Mac OS 10.6.8. Do not ask me which cat this is; I can't keep track.
FF version 18.0.
I've only just installed FontFinder, so let's assume it is the most recent version.
Here's my version of Only Works Once:
FontFinder always does its thing on the first page I use it on. But if I open a different page in the same window or tab, _sometimes_ it will work only the first time, or not at all. I can't pinpoint the variables except that it doesn't depend on how I got there (link from previous page vs. address entered "cold").
If I open a new window, FontFinder will always work on the first page, even if it's a page it previously refused to work on. Refreshing the page has no effect. _Sometimes_ (not always) a new tab is enough.
On the present site (mozilla dot org), Font Finder will continue to work across multiple pages, whether in new tabs or the same one. But this is probably the same principle as "It worked fine when the repairman looked at it."