The only possible way to import bookmarks from Chrome from Android is to use a desktop/laptop computer. * Sync Chrome Android data to Desktop Chrome * Use [https://support.mozilla.org/en-US/kb/import-bookmarks-google-chrome Firefox's import bookmarks] option to get the data * Then use Firefox sync to transfer the desktop Firefox information to [https://support.mozilla.org/en-US/kb/sync-bookmarks-tabs-history-and-passwords-android Firefox for Android].