Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Windows: Is it possible to optimize space usage, when both Mozilla Firefox and Thunderbird are installed? I see that some files are the same in both applications (mostly common DLL libraries) - even 10 MB

  • 5 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

more options

I think that the best idea is to add one folder: Mozilla shared, just for all shared libraries.

I think that the best idea is to add one folder: Mozilla shared, just for all shared libraries.

All Replies (5)

more options

Sorry, not really. If you give me some details on exactly what you want, I'll file a feature request bug in our bug tracker for you, if you'd like that.

more options

Hm.. it is nothing critical. Not a bug, error nor mistake. Just my idea. Just thought about it as in similar applications: All Open Office software use shared libs, Microsoft Office too.

And it could keep both Firefox and Thunderbird up to date. Now both applications update seperately, and many files (compressed, but still) are downloaded two times. The biggest files: d3dx9_43.dll, D3DCompiler_43.dll, mozjs.dll but there are many others.

You should decide if it is worth to show my sugestion..

more options

Okay. I'll put a bug in so developers can see if this could be made somehow. We could publish it as a lite suite

more options

Thank you for your time, have a nice weekend !

more options

You would have to update both (all) versions at the same time to avoid inconsistencies between the DLL versions that the programs use.
It would even be more difficult if you install multiple versions of Firefox or Thunderbird for testing purposes.