Trello refuses to load on Firefox Developer every now and then NS Error File Corrupted

trello-broken.js

Uncaught 
Exception { name: "NS_ERROR_FILE_CORRUPTED", 
  message: "", 
    result: 2152857611, 
    filename: "https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js", 
      lineNumber: 1, 
        columnNumber: 0, 
          data: null, 
        stack: "value@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:2080422\nvalue@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:2080282\nvalue@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:1478610\ne@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:1478250\n./packages/feature-flag-client/src/feature-flag-client.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:1481533\nb@https://trello.com/:37:8309\n./packages/feature-flag-client/index.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:1469269\nb@https://trello.com/:37:8309\n./packages/error-reporting/index.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:1459688\nb@https://trello.com/:37:8309\n./app/scripts/entry/app.js@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:421853\nb@https://trello.com/:37:8309\n0@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:2142712\nb@https://trello.com/:37:8309\nr@https://trello.com/:37:459\na@https://trello.com/:37:322\n@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:47\n" 
          }

Pretty much deleting all stored cookies, reloading, re-authenticating at Atlassian and then Trello seemed to solve it but then I had another

Uncaught 
Exception { 
name: "NS_ERROR_FILE_CORRUPTED", 
message: "", 
result: 2152857611, filename: "https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js", 
lineNumber: 1, 
columnNumber: 0, data: null, 
stack: "value@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:2080422\nvalue@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:
2080282\nvalue@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1478610\ne@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1478250\n./packages/feature-flag-client/src/feature-flag-client.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:1481533\nb@https://trello.com/:
37:8309\n./packages/feature-flag-client/index.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1469269\nb@https://trello.com/:
37:8309\n./packages/error-reporting/index.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1459688\nb@https://trello.com/:
37:8309\n./app/scripts/entry/app.js@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:421853\nb@https://trello.com/:37:8309\n0@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:2142712\nb@https://trello.com/:37:8309\nr@https://trello.com/:
37:459\na@https://trello.com/:37:322\n@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:47\n" }
app.9f2bb7828af618560418.js:1

Deleted all site data and cookies via Firefox settings > Cookie and Site Data to have Trello reload again properly. This still did not solve the issue and showed me

Exception
​
columnNumber: 0
​
data: null
​
filename: "https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js"
​
lineNumber: 1
​
message: ""
​
name: "NS_ERROR_FILE_CORRUPTED"
​
result: 2152857611
​
stack: "value@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:2080422\nvalue@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:2080282\nvalue@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1478610\ne@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1478250\n./packages/feature-flag-client/src/feature-flag-client.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1481533\nb@https://trello.com/:37:
8309\n./packages/feature-flag-client/index.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1469269\nb@https://trello.com/:
37:8309\n./packages/error-reporting/index.ts@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:1459688\nb@https://trello.com/:
37:8309\n./app/scripts/entry/app.js@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:421853\nb@https://trello.com/:
37:8309\n0@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:
1:2142712\nb@https://trello.com/:37:8309\nr@https://trello.com/:
37:459\na@https://trello.com/:37:322\n@https://a.trellocdn.com/prgb/dist/br/app.9f2bb7828af618560418.js:1:47\n"

Firefox reset does help, but you may need to run it twice. Once all done you shall see