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Fix Git 'refusing to merge unrelated histories' Error - Resolving 'Unable to Create index.lock' in Git-Firefox Secure Connection Error on All Sites: How to Fix

2026-07-28 09:45:14
Fix Git 'refusing to merge unrelated histories' Error - Resolving 'Unable to Create index.lock' in Git-Firefox Secure Connection Error on All Sites: How to Fix

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

Next references

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