Google Drive/Docs/Sheets opens in tabless window

My system details:

  1. System
    macOS Mojave
    Version 10.14.6 (18G8022)
    MacBook Air (13-inch, Mid 2013)
    Processor 1,3 GHz Intel Core i5
    Memory 4 GB 1600 MHz DDR3
    Graphics Intel HD Graphics 5000 1536 MB

  2. Browser
    Brave Browser
    Version 1.24.86 Chromium: 90.0.4430.212 (Official Build) (x86_64)

  3. Extension 1
    Editor for Docs, Sheets & Slides
    https://chrome.google.com/webstore/detail/editor-for-docs-sheets-sl/hkakjhmommclljpfacdehochefpefhph

  4. Extension 2
    Office Editing for Docs, Sheets & Slides
    https://chrome.google.com/webstore/detail/office-editing-for-docs-s/gbkeegbaiigmenfmjfclcdgdpimamgkj

Problems:

  1. Brave opens Google Drive address http://drive.google.com/ in a new tabless window
  2. Brave opens Google Drive folders in a new tables window.
  3. Brave opens Google files (Docs and Sheets) in a new tabless window.
  4. Brave opens .docx in a new tabless and white blank window.