Mozilla introduced support for checking spelling in multiple languages simultaneously in Firefox in Firefox 100, which will be released in May 2022. The feature works for most language combinations, but a bug caused problems with pages containing English and non-Latin words. Mozilla confirmed the issue in Russian, Hebrew, and Greek, and the Firefox 102.0.1 release fixes it.
The next two issues fixed in Firefox 102.0.1 address issues related to bookmarks. the first one was fixedWindowsBug in the creation of bookmark shortcuts that broke drag-and-drop functionality. Firefox supports dragging links or images to the desktop. The bug only affects filenames with invalid characters, but causes drag and drop operations to fail.
The second bookmark-related question addresses the visual issue. Firefox users who open the bookmarks sidebar in dark mode may have noticed it flashing white when doing so. Firefox 102.0.1 resolves this issue.
The last issue that Mozilla is addressing in the new Firefox Stable release fixes a bug in the developer tools. Firefox’s developer console output automatically scrolls to the bottom when the last visible message is the evaluation result. Mozilla lists “various stability fixes” in the release notes, but doesn’t elaborate.