Abrupt Crashes in Brave browser

Description of the issue: When opening a new Private Window, typing certain letters crashes the browser, closing all open windows(even, normal browser windows). The letters A, F, I, M were responsible for the crashes.

Steps to Reproduce:

  1. Open a new Private Window
  2. Start typing any of the lettters - A, F, I, M.

Actual Result: Brave crashes abruptly, closing all open windows(not just Private windows). [Unable to provide screenshots due to nature of bug]

Expected result: Normal typing/browsing experience

Reproduces how often: Sometimes [experienced it just before writing this bug report, but unable to reproduce it for now]

Brave Version: Version 0.66.99 Chromium: 75.0.3770.100 (Official Build) (64-bit)

Reproducible on current live release: Yes

Additional Information: Also experienced a similar problem previously with the letter T, but not able to reproduce it as of now; might have been fixed in update.