How do I Increase Size
I want to increase the size of everything in Firefox, especially the type (font) size. I know how to increase or decrease the font size within documents, etc but not within Firefox as a whole
This happened
Every time Firefox opened
== always
ప్రత్యుత్తరాలన్నీ (1)
If you mean the fonts used by the browser itself, then the best way is to find a theme with a bigger font.
(If you're technically competent you and know CSS could also gooogle for userChrome.css)
If you mean the font size for every webpage, then try this addon