Как установить Firefox-ESR v.115?

[Yochanan]

Closing in favor of your duplicate topic in English:

How to install Firefox-ESR v.115?

Tell me, please, how to install the “long-lasting” Firefox-ESR v115 instead of the usual Firefox 118 ? Found it in AUR: [firefox-esr 115.4.0-1 (11)] First of all, I uninstalled the preinstalled Firefox 118th, it was completed without problems. Then I started installing ESR. But it turned out that he was not settling down, but getting ready. Okay, I click “Build”, I agree with the PGP key. The assembly continues for quite a long time, and at the end the following error appears …