Firefox – How to set default web page size in Firefox

firefoxzoom

I recently downloaded Firefox the new version, and for most of the part it is good. Though a problem in it I found is that every time I open a new web page I need to set the zoom level to 170% so that the page becomes readable and fits the screen size. How can I set it once and for all?

Note: I am using a Windows 10 machine.

Best Answer

You can set layout.css.devPixelsPerPx to 1.0 (default is -1) on the about:config page. Adjust its value in 0.1 or 0.05 steps (1.1 or 0.9) until icons or text looks right. Modifying layout.css.devPixelsPerPx affects user interface and web pages (global zoom). You can use an extension to correct the appearance of web pages.

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

http://kb.mozillazine.org/about:config

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I had this same issue today and found this post after searching Google. I fixed it in basically the same way as Android Eve laid out, just using the print.print_paper_name setting instead and using iso_a4 as the value.

So the long version, that's:

In the address bar, type about:config.
Enter print.print_paper_name in the filter box and press Enter.
Double-click the entry named print.print_paper_name.
Enter iso_a4 in the dialog box and press OK.
Notice that it now works fine, and upvote this response ;)

How to the default zoom size be set in Opera

Open the following URL in Opera.

opera:config#UserPrefs|Scale

Change the number, 100, to the desired zoom level, say 215, and save the new setting by pressing the Save button at the bottom of the page (it is a long page!).

Opera may acknowledge by

JavaScript. <opera:config>. Setting saved. Scale. Some changes may require a restart to take effect.

Press the OK button. In this case, it takes effect immediately; a restart is not necessary for this change.

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