Providing temporary use of on-line non-downloadable software for processing electronic payments; Providing temporary use of on-line non-downloadable software for authenticating and controlling access to and communications with computers and computer networks; Providing temporary use of on-line non-downloadable software for use in electronically trading, storing, sending, receiving, accepting and transmitting digital currency, non-fungible tokens, crypto collectibles, and for managing digital currency transactions; Providing temporary use of on-line non-downloadable software for providing an interface between an internet browser and distributed computing platforms; Providing temporary use of on-line non-downloadable software for for accessing distributed computing platforms; Providing temporary use of on-line non-downloadable software for that provides a user interface for managing digital identities and for signing blockchain transactions; Providing temporary use of on-line non-downloadable software for for securing digital identities; Providing temporary use of on-line non-downloadable software for for encryption of private keys; Providing temporary use of on-line non-downloadable software for for execution and management of secure data transactions; Providing temporary use of on-line non-downloadable computer software for use as a digital wallet; Providing on-line non-downloadable software for generating cryptographic keys for receiving and spending cryptocurrency