Rated 5 out of 5 stars

Από τον/την Χρήστης Firefox 95e2b2 στις Νοέμ. 21, 2017 · μόνιμος σύνδεσμος

57 looks good. but need Sessoin Manager in advance. So revert the vesion to 56. FF guys would support SM developers to make it compatible.
Wanna revert ?, https://support.mozilla.org/en-US/kb/install-older-version-of-firefox