QuotaExceededError: Failed to execute 'setItem' on 'Storage': Setting the value of 'metamask-config' exceeded the quota.

[kumavis]

https://sentry.io/metamask/metamask/issues/439078556/

QuotaExceededError: Failed to execute 'setItem' on 'Storage': Setting the value of 'metamask-config' exceeded the quota.
  at LocalStorageStore._putState (chrome-extension://nkbihfbeogaeaoehlefnkodbefgpgknn/scripts/background.js:76821:34)
  at LocalStorageStore.putState (chrome-extension://nkbihfbeogaeaoehlefnkodbefgpgknn/scripts/background.js:76537:12)
  at ObsStoreStream._write (chrome-extension://nkbihfbeogaeaoehlefnkodbefgpgknn/scripts/background.js:76670:21)
  at doWrite (chrome-extension://nkbihfbeogaeaoehlefnkodbefgpgknn/scripts/background.js:80795:64)
  at writeOrBuffer (chrome-extension://nkbihfbeogaeaoehlefnkodbefgpgknn/scripts/background.js:80784:5)
...
(9 additional frame(s) were not displayed)

[tmashuang]

Function in chrome-extension://nkbihfbeogaeaoehlefnkodbefgpgknn/scripts/background.js:76537:12 is:

function pbkdf2 (password, salt, iterations, keylen, digest) {
  if (!Buffer.isBuffer(password)) password = Buffer.from(password, defaultEncoding)
  if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, defaultEncoding)

  checkParameters(iterations, keylen)

  digest = digest || 'sha1'

  var hmac = new Hmac(digest, password, salt.length)

  var DK = Buffer.allocUnsafe(keylen)
  var block1 = Buffer.allocUnsafe(salt.length + 4)
  salt.copy(block1, 0, 0, salt.length)

  var destPos = 0
  var hLen = sizes[digest]
  var l = Math.ceil(keylen / hLen)

  for (var i = 1; i <= l; i++) {
    block1.writeUInt32BE(i, salt.length)

    var T = hmac.run(block1, hmac.ipad1)
    var U = T

    for (var j = 1; j < iterations; j++) {
      U = hmac.run(U, hmac.ipad2)
      for (var k = 0; k < hLen; k++) T[k] ^= U[k]
    }

    T.copy(DK, destPos)
    destPos += hLen
  }

  return DK
}

[kumavis]

We released a version that uses extension.storage.local to address this issue - however we have not yet removed writing to localStorage

[kumavis]

localStorage writing was removed here #3732