My friends and family do the New York Times Crossword and the site has an annoying header that takes up a lot of the screen real estate. This is a very simple web-ext that removes that header.

xo_cross: Remove Annoying Header from New York Times Crossword
xo_cross is a Firefox add-on designed to remove the header that takes up a lot of screen real estate on the New York Times Crossword website. It provides a simpler and cleaner user interface for friends and family who enjoy doing the crossword puzzles.
Add-on stats
Manifest V2
Firefox on Android: No
Permissions:
- *://*.nytimes.com/crosswords/game/*
- Host permissions
Size: 10.42K
Email: xo*****@xasopheno.com
Source: Firefox Browser Add-ons
Ranking
Add-on safety
Risk impact
xo_cross requires very minimum permissions.
Risk impact analysis details
- High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- Low ******* ****** ** *** ********* ******** ***********
Risk likelihood
xo_cross has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details
Similar add-ons
Here are some Firefox add-ons that are similar to xo_cross: