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Firefox print scale (size percentage) is stuck at 30% for all printing in Firefox, can't change it.

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I've used Firefox as my default browser for years on my PC (Windows 10), never had this problem: Two days ago everything I printed from Firefox started printing in tiny print. After sleuthing, I found that my default print scale size (as seen in the Print Preview window) had defaulted to 30% (I normally leave it at Shrink to Fit). And even the title of that percent window changed from "Scale" to "ShrinktoFit".

The problem is that I can't change it out of 30%! When I choose another percent or Shrink to Fit in that Print Preview window (as I've always done for years when I want to change the print size for a particular job), it doesn't hold; next print job it's right back to 30% and tiny print.

I went to the Firefox "How to fix printing problems" page and followed all the instructions (including the about:config fix), I have restarted Firefox multiple times including in Safe Mode (with all Add-ons disabled), I finally uninstalled Firefox completely on my PC and then downloaded and reinstalled it again, but still the print size is stuck at 30%. And that's for anywhere and anything I print on the internet in Firefox (my Yahoo email, any and all web pages, etc). I tried downloading Chrome and printing the same test web pages from Chrome and they come out fine. So it appears to be some glitch with Firefox on my PC.

Any ideas what's wrong?

I've used Firefox as my default browser for years on my PC (Windows 10), never had this problem: Two days ago everything I printed from Firefox started printing in tiny print. After sleuthing, I found that my default print scale size (as seen in the Print Preview window) had defaulted to 30% (I normally leave it at Shrink to Fit). And even the title of that percent window changed from "Scale" to "ShrinktoFit". The problem is that I can't change it out of 30%! When I choose another percent or Shrink to Fit in that Print Preview window (as I've always done for years when I want to change the print size for a particular job), it doesn't hold; next print job it's right back to 30% and tiny print. I went to the Firefox "How to fix printing problems" page and followed all the instructions (including the about:config fix), I have restarted Firefox multiple times including in Safe Mode (with all Add-ons disabled), I finally uninstalled Firefox completely on my PC and then downloaded and reinstalled it again, but still the print size is stuck at 30%. And that's for anywhere and anything I print on the internet in Firefox (my Yahoo email, any and all web pages, etc). I tried downloading Chrome and printing the same test web pages from Chrome and they come out fine. So it appears to be some glitch with Firefox on my PC. Any ideas what's wrong?

Additional System Details

Installed Plug-ins

  • Shockwave Flash 31.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0

More Information

jscher2000
  • Top 10 Contributor
8757 solutions 71653 answers

Sorry! That scale drop-down on the toolbar is broken in Firefox 63 and is not set to the correct current scale. The problem will be fixed in Firefox 64.

For now, this is what I can say about the information on that bar:

(A) If the bar says "Shrink to Fit [30%]" you can ignore the 30%; Firefox is set to Shrink to Fit

(B) If the bar says "Scale [30%]" you need to check the Page Setup dialog to see the current scale

Screenshot illustration attached.

Sorry! That scale drop-down on the toolbar is broken in Firefox 63 and is not set to the correct current scale. The problem will be fixed in Firefox 64. For now, this is what I can say about the information on that bar: (A) If the bar says "Shrink to Fit [30%]" you can ignore the 30%; Firefox is set to Shrink to Fit (B) If the bar says "Scale [30%]" you need to check the Page Setup dialog to see the current scale Screenshot illustration attached.
cor-el
  • Top 10 Contributor
  • Moderator
17516 solutions 158398 answers

See also:

  • Bug 1501952 - Print preview always shows 30% scale when it is actually Shrink To Fit

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html
)

See also: *[https://bugzilla.mozilla.org/show_bug.cgi?id=1501952 Bug 1501952] - Print preview always shows 30% scale when it is actually Shrink To Fit (<i>please do not comment in bug reports<br>https://bugzilla.mozilla.org/page.cgi?id=etiquette.html</i>)

Question owner

When is 64 coming out?

When is 64 coming out?
jscher2000
  • Top 10 Contributor
8757 solutions 71653 answers

daniellewi said

When is 64 coming out?

Mid-December-ish.

''daniellewi [[#answer-1168341|said]]'' <blockquote> When is 64 coming out? </blockquote> Mid-December-ish.
jscher2000
  • Top 10 Contributor
8757 solutions 71653 answers

An interim 63.0.1 update should be out soon with a fix for this:

https://www.mozilla.org/firefox/63.0.1/releasenotes/

An interim 63.0.1 update should be out soon with a fix for this: https://www.mozilla.org/firefox/63.0.1/releasenotes/