Fixes the issue with API requests for Firefox and Thunderbird products

[jhonatasrm]

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Identify the Bug

Issue #198

Description of the Change

Now, "Firefox" and "Thunderbird" are sent to the API in lower camel case. Previously, all the languages were being sent in upper camel case, which resulted in no response for those products.

Alternate Designs

No

Possible Drawbacks

No

Before fix (Hungarian):

After fix (Hungarian):

Before fix (English):

After fix (English):

[dannycolin]

Odd that it was working before with uppercases. Anyhow, it looks fine to me so LGTM.