Rated 5 out of 5 stars

bởi Firefox user 95e2b2 vào Tháng 11. 21, 2017 · liên kết thường trực

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