I can confirm that this happens on Chromium 77.0.3865.90 This is the version info from chrome://version 77.0.3865.90 (Official Build) Built on Ubuntu , running on LinuxMint 19.2 (64-bit)
Checking with dpkg, ibus-pinyin is version 1.5.0-4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1429627 Title: When ibus-pinyin is activated, selecting text in firefox deletes text To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ibus-pinyin/+bug/1429627/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs