Windows 7: Quicky, dumb question

Hello,
I somehow lost on Firefox 3.6.9 on Windows 7 Ultimate, the pop up warning message to warn about your deletion choice. I honestly don't recall clicking the don't show box, but its' possible. Anyone know how to retrieve it? Thanks for any help.
glennc

You can re-enable pop ups from Tools -> Options.
Could you explain what you mean by warnings for deletion choices?

Howdy Lemur,
Thanks for responding. I meant that when I would previously empty the trash on Thunderbird it would pop up an "are your sure, files will be totally irretrievable" type of message (or something similar, can't remember) and you'd have to hit continue to get it to delete the files in the trash. Now when I hit delete trash, it just does it. I liked the warning so I could double check for something I might not want to delete.
I couldn't find it in the tools/options?!?!??
glennc

Right click recycle bin> click confirm delete. See snip

Hello Zigzag3143,
Thanks for responding and helping. Turns out that I didn't need to do that. I found a repair folders in Folders Properties in Edit. I let it repair the folders and it switched back on. Double checked your advice and it is now checked. Appreciate you help.
glennc