Microsoft Edge crashed and closed unexpectedly on my Ubuntu PC. It did not open itself for a couple of seconds. It could not open Edge at all. Microsoft Edge had already contained my Microsoft account information and it automatically synced with my Microsoft account. That might have been causing this problem. Since Microsoft Edge was not able to open itself even for a second. Re-installation of Microsoft Edge was only the way to fixed this problem. Here is how to uninstall and reinstall Microsoft Edge on Ubuntu.
At first, uninstall Microsoft Edge with the command below on Ubuntu.
sudo apt remove microsoft-edge-stable
Download the latest version of Microsoft Edge in .deb file format from the site below.
https://www.microsoft.com/en-us/edge
sudo dpkg -i microsoft-edge-stable_<version>.deb
Unfortunately, the re-installation of Microsoft Edge Stable version did not solve this problem. I removed Microsoft Edge Stable version and installed Microsoft Edge Dev Version. That solved this issue. Microsoft Edge Dev Version URL: https://www.microsoft.com/en-us/edge/download/insider?form=MA13FJ
I removed Microsoft Edge Standard version again.
sudo apt remove microsoft-edge-stable
I installed Microsoft Edge Dev Version.
sudo dpkg -i microsoft-edge-dev_<version>.deb
Microsoft Edge Dev version show “DEV” over its logo.
After then, I could open Edge normally and the crashing problem was solved!!!