When opening, you will receive a warning to update Firefox, but you can ignore it.

This is because the version notation uses its own versioning. The actual contents are ESR128+ appropriate.

https://cdn.nostrcheck.me/3589b793b977c4f025175afd792e7c51d26ef683b45cbc66c56c4d14ad53847e/18542abdadcd898f4e93a5ca0591aa9cb2fe99bbddaefd86127f2f97802c3ea6.webp

https://cdn.nostrcheck.me/3589b793b977c4f025175afd792e7c51d26ef683b45cbc66c56c4d14ad53847e/15a12837d3d3f69669f8927cd823f94c62045c281f36905691ec54e675022152.webp