STABLE version -- 4.2.10.171

[Admin]

Hello ! How I may downgrade to v4.2.9.152 version without full reinstall browser ? Problem with fonts (then directdraw disable).

For installed version, you can choose keeping your data when uninstalling the new version in Control Panel, then installing the old version.
For portable version, just extract the old installer to the browser directory and overwrite all files.
In both cases, you should better manually delete the files "Cookies" and "Web Data" under "User Data\Default" to avoid conflict.