No-NSFW

No-NSFW is a Firefox Extension which warns you about NSFW links before you click them. When you hover on an external link, the plugin gets the rating (NSFW, SFW or unrated) for that link. This is displayed on the bottom-right of the screen as a small unintrusive warning. NSFW rating is determined by user votes. To report a site for NFSW content, click on the No-NSFW icon no-nsfw on the Firefox status bar and select "Mark NSFW". If a site has been incorrectly marked as NFSW, you can mark it as SFW using the "Mark SFW" menu option.