From: ldo@nz.invalid   
      
   Here’s a weird thing: as of a few days ago, bitbucket.org seems to be   
   blocking a specific version of Firefox. Or rather, it looks to me like   
   a bug rather than a deliberate block, because you get a 404 error   
   (page not found) trying to access something as simple as the home   
   page, instead of a response that says “keep out” more explicitly, like   
   a 403 error (access forbidden).   
      
   I have verified that the problem is down to the user-agent string,   
   which means I can reproduce it with a simple wget command, without   
   actually involving Firefox at all. Here’s a command to reproduce the   
   error, using the exact same user-agent string as my current version of   
   Firefox would present:   
      
       wget --user-agent="Mozilla/5.0 (Linux x86_64; rv:146.0) Gecko/20100101   
   Firefox/146.0" https://bitbucket.org/   
      
   If I fiddle with that user-agent string in various ways (like changing   
   the version number), the access will succeed. You can try this for   
   yourself.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)