Android does not provide a way for apps to access other apps data. The only way this is possible is via a desktop/laptop computer. You would sync your Chrome data to your Google account. Open Chrome on a desktop computer and check that everything you expect is present. Then quit Chrome and [https://support.mozilla.org/en-US/kb/import-bookmarks-google-chrome import the Chrome data to Firefox]. Then use [https://support.mozilla.org/en-US/kb/sync-logins-firefox-desktop Firefox Sync] to get the data to [https://support.mozilla.org/en-US/kb/how-set-firefox-sync-firefox-android Firefox for Android ]