Please, please, please, please, please...
Add an "Ignore" or "Skip" button to the backup reminder.
I use FEBE as one way of maintaining a synchronized profile between my desktop and my laptop (beyond bookmarks/etc. that things like Weave and XMarks can support).
I have my desktop set up to remind me weekly to backup my profile.
Because of this, whenever I restore a profile to my laptop, I end up getting reminders to backup the profile on the laptop, which isn't what I want. I either have to go into FEBE settings and disable the reminder completely, or just deal with the fact that evertime I launch a new browser window, it's unusable until after I close the modal FEBE reminder.
A "Skip" or "Ignore" button would allow me to skip the current reminder... act as if the backup happened and just stop reminding me everytime I launch.