Get re-listed on Firefox

[mr-michael]

Decision: do we want this?

• market share is ~10%
• ledger needs to be reworked to work in firefox
• getting signed xpi and distributing it on the site is quite easy

Tasks:

• decouple UI and background dependencies
• #1335
• commit hash fix
• automated asset upload or .env with the environment variables
• turn off minification for firefox

[nuke-web3]

For sure, people want this :grin:

[waokdalf]

For sure, we need this

[puppycodes]

Wont Fix: Not priority until later