I strongly believe that extensions stealing resources and power from unwitting users should be banned. If they were upfront about what they are doing, but in most cases they plug-in is fronting as something else and unknown to most users, it's doing something else beside the stated purpose.

Electroneum is a First British Crypto Currency, it has its own BlockChain (open source) and can be managed all from a mobile app.
Cardano is a distributed computing platform that runs the blockchain for the Ada cryptocurrency.

Oyster Pearls – PRL – is the native token of this platform, and is the bridge between a user’s motivation to spend money on storing data reliably and the motivation of a website owner to cleanly monetize their web content. Ethereum Blockchain’s Smart Contract technology is used to produce Oyster Pearls, thus activating the unique attributes of the token that allow Oyster to function.

Bitcoin is a digital currency (also called crypto-currency) that is not backed by any country's central bank or government. Bitcoin-to-Bitcoin transactions are made by digitally exchanging anonymous, heavily encrypted hash codes across a peer-to-peer (P2P) network. The P2P network monitors and verifies the transfer of Bitcoins between users.

A hardware wallet is a special type of bitcoin wallet which stores the user's private keys in a secure hardware device.
Hardware: wallets differ from software wallets in that they store a user’s private keys on a hardware device like a USB. Although hardware wallets make transactions online, they are stored offline which delivers increased security. Hardware wallets can be compatible with several web interfaces and can support different currencies; it just depends on which one you decide to use. What’s more, making a transaction is easy. Users simply plug in their device to any internet-enabled computer or device, enter a pin, send currency and confirm. Hardware wallets make it possible to easily transact while also keeping your money offline and away from danger.

A bitcoin wallet is a software program that stores the record (aka private key) of every bitcoin you own. Bitcoin wallets come in many different forms, and it's important to understand them -- and how to keep them safe -- before you even start buying bitcoins.
To understand bitcoin wallets, it is helpful to review some basic foundational information. Bitcoin addresses, which are strings of letters and numbers, contain both a private and public key.
A private key gives a user the means to spend bitcoin. A public key is more like a destination that lets a user to receive bitcoin.
Because a private key holds all information needed to access a bitcoin address, one can use it to derive the public key.

Satoshi Nakamoto is the name used by the unknown person or people who invented and designed bitcoin, authored the bitcoin white paper, and created and deployed bitcoin's original reference implementation. As part of the implementation, they also devised the first blockchain database.In the process they were the first to solve the double-spending problem for digital currency using a peer-to-peer network. They were active in the development of bitcoin up until December 2010. In October 2008, Nakamoto published a paper on the cryptography mailing describing the bitcoin digital currency. It was titled "Bitcoin: A Peer-to-Peer Electronic Cash System". In January 2009, Nakamoto released the first bitcoin software that launched the network and the first units of the bitcoin cryptocurrency, called bitcoins. Satoshi Nakamoto released the Version 0.1 of bitcoin software on Sourceforge on 9 January 2009.

"Altcoin" is a combination of two words: "alt" and "coin"; alt is short for alternative and coin signifies currency. Thus together they imply a category of cryptocurrency that is alternative to the digital currency Bitcoin. After the success story of Bitcoin, many other peer-to-peer digital currencies have emerged in an attempt to imitate that success.

Airdrop is another way to earn $$ for free just be careful. Airdrops can be used as a means of rewarding loyal customers with free cryptocurrency tokens. This serves as an incentive that can assure continued patronage on such platforms. This type of airdrop mirrors the voucher and discount giveaways of non-[Suspicious link removed]panies in the mainstream commercial world.

Bounties in the digital word take their origin from online gaming platforms that offered rewards for participating in their game development. Bounties are essentially incentivized reward mechanisms offered by companies to individuals. What this means is that a company introducing a product or a service offers some rewards to people in exchange for performing certain tasks.  The company gives rewards to a person and the person in return does some simple tasks for the company. It is a veritable means of advertising for many companies.

An airdrop for a cryptocurrency is a procedure of distributing tokens by awarding them to existing holders of a particular blockchain currency, such as Bitcoin or Ethereum.Airdrops can be delivered in a variety of ways, including forks, ICO purchases, and freebies. Sometimes an airdrop will occur if a team behind the blockchain project decides to give away “free” tokens to the cryptocurrency community.