@ChuckBaggett
Hi, the chrome web store bann this extension, they do for all Manifest V2 extensions June/July this Year.
Chrome extensions which change existing Vivaldi features like tab management often not work in Vivaldi but it should not crash Vivaldi or a tab.
Work for me on Vivaldi 7.1.3570.50, maybe it collide with other extensions on your system.
Disable all others and restart Vivaldi.
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