howto leave firefox b?

Hi Joe, do you want to roll back to Firefox 159.0, the current release version? Unfortunately, Firefox does not have a reliable method to downgrade profile contents to an older version. Very often the files are compatible, but from time to time, the file structures change in a way that the older Firefox can't handle. One option is to use Firefox Sync to transfer selected data, but this isn't a complete solution. If you decide to install Firefox 159.0 and see how it goes, please choose a directory that beta is not using to avoid overwriting or mixing files. See the following articles for steps to control the install location: [[Custom installation of Firefox on Windows]]