Replace: RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?firefox/unsupported/EOL(.*)$ /b/$1firefox/unsupported/EOL$2 [PT] RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?firefox/unsupported/warning(.*)$ /b/$1firefox/unsupported/warning$2 [PT] RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?firefox/unsupported/win(.*)$ /b/$1firefox/unsupported/win$2 [PT] With: RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?firefox/unsupported/(.*)$ /b/$1firefox/unsupported/$2 [PT] First on dev and stage, and then master after confirmation with a dev.

dev and stage updated with this redirect. changes should take affect on the web heads within 30 minutes.

Good thanks. This can be pushed to prod!

:rik i have updated prod with this redirect. changes should be present shortly :)