It is proper Netiquette to use extensions. Do install useful extensions.
Extensions enhance email software programs. In general they are made by third parties. Third party email apps have third party extensions. They are available for free email accounts and other third party software. Many add signatures, make content easily viewable in a browser, and add other tweaks to good software programs. Added security is a benefit as well.
There are a lot of extensions available for Thunderbird and Gmail. Each has there own marketplace for finding them. Installation must be done after acquisition.
Use extensions because they provide functionality and security.
Mistress and student discuss the principle of society. Mistress teaches the do unto others quote.
A meeting to discuss etiquette. Essential online safety tips and guidelines are shared.
From the newsroom, User Generated Content communication skills.
A news broadcast of conventions for easily movable devices and wireless connections.
Techniques for engagement during the acquisition of knowledge.
Digital Citizens discuss freedom from harm and risk online.
A lesson in business etiquette for electronics at the office.
Email etiquette incuding the inverted pyramid style of writing.
From the news station, digital motion picure tips for capturing and viewing.