AOL still have active trademarks for “Netscape” which might trouble you here:

- https://tsdr.uspto.gov/#caseNumber=76017078&caseSearchType=U...

> PROVIDING MULTIPLE-USER ACCESS TO A GLOBAL COMPUTER INFORMATION NETWORK FOR THE TRANSFER AND DISSEMINATION OF A WIDE RANGE OF INFORMATION; ELECTRONIC TRANSMISSION OF DATA, IMAGES, AND DOCUMENTS VIA COMPUTER NETWORKS; [ELECTRONIC MAIL SERVICES; PROVIDING ON-LINE CHAT ROOMS FOR TRANSMISSION OF MESSAGES AMONG COMPUTER USERS CONCERNING A WIDE VARIETY OF FIELDS]

- https://tsdr.uspto.gov/#caseNumber=76017079&caseSearchType=U...

> PROVIDING INFORMATION IN THE FIELD OF COMPUTERS VIA A GLOBAL COMPUTER NETWORK; PROVIDING A WIDE RANGE OF GENERAL INTEREST INFORMATION VIA COMPUTER NETWORKS

- https://tsdr.uspto.gov/#caseNumber=74574057&caseSearchType=U...

> computer software for use in the transfer of information and the conduct of commercial transactions across local, national and world-wide information networks

And in case someone is wondering if Yahoo can be said to have abandoned the mark by disuse, it seems like http://isp.netscape.com is still up, so they have their bases covered.