Firefox not launching

I just update firefox and after upgrading I run firefox but it didn’t launch instead I get this error. How can I fix this?

/usr/lib/firefox/firefox: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.30’ not found (required by /usr/lib/firefox/firefox)

This was already posted many times. Firefox 100 packages got wrongly forwarded from Unstable branch. Having there a different toolchain creates that issue. This is now reverted: [manjaro-packages] [BoxIt] Memo (x64) Please issue a regular sudo pacman -Syyuu to downgrade to a working version of Firefox.

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