The browser program doesn't have an option to claim this credit. I've triple-checked all the non-refundable credits that I can claim that is listed.
As per the Canada Revenue Agency(CRA), the Federal Public Transit tax credit was eliminated in 2017, currently only Ontario offers a credit for seniors. https://www.ontario.ca/page/ontario-seniors-public-transit-tax-credit
For more detail, you can refer to this CRA link: https://www.canada.ca/en/revenue-agency/programs/about-canada-revenue-agency-cra/federal-government-budgets/budget-2017-building-a-strong-middle-class/public-transit-tax-credit.html
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