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Is there a way to permanently change the default page size?

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The default Firefox settings on my new computer bring up pages that are difficult to read with my middle aged eyes. I can do "CNTRL +" to increase the page size, but I have to do this on every single page I open, and it is tedious. Is there a way to change the default page size to a size I get by hitting "CNTRL +" a few times so I don't have to hit "CNTRL +" every time I look at a new page?

The default Firefox settings on my new computer bring up pages that are difficult to read with my middle aged eyes. I can do "CNTRL +" to increase the page size, but I have to do this on every single page I open, and it is tedious. Is there a way to change the default page size to a size I get by hitting "CNTRL +" a few times so I don't have to hit "CNTRL +" every time I look at a new page?

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