hello, try to press ctrl+0 ('zero') while you're on the page in order to reset the zoom level or in case this doesn't work also go through the other common troubleshooting steps at Websites look wrong or appear differently than they should.

You can rename (or delete) the content-prefs.sqlite file in the Firefox profile folder to reset the page zoom for all websites.

Type about:support in the address bar and press enter.

Under the page logo on the left side you will see Application Basics. Under this find Profile Folder. To it’s right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Locate the content-prefs.sqlite file. Then rename or delete it. Restart Firefox.

Thanks for the advice guys but still no good.

Whatever I try the zoom or text doesn't change.

You can set the layout.css.devPixelsPerPx pref on the about:config page to 1.0 You can adjust layout.css.devPixelsPerPx starting from 1.0 in 0.1 or 0.05 steps (1.1 or 0.9) to make icons show correctly.

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

Use an extension to adjust the text size in the user interface and the page zoom in the browser window.

You can look at this extension to adjust the font size for the user interface.

• Theme Font & Size Changer: https://addons.mozilla.org/firefox/addon/theme-font-size-changer/

You can look at the Default FullZoom Level or NoScript extension if web pages need to be adjusted after changing layout.css.devPixelsPerPx.

• Default FullZoom Level: https://addons.mozilla.org/firefox/addon/default-fullzoom-level/
• NoSquint: https://addons.mozilla.org/firefox/addon/nosquint/

Thanks, Co-rel. The zoom add-on is great and works for every page except teh one i need to change:

http://www.bet365.com/home/FlashGen4/WebConsoleApp.asp?lng=1&cb=19615

I really think i'll just have to view this on my phone or tablet. I'll contact the website admins and see if they can help as well.

Thanks for all your help. I've certainly learnt some usfeful hints.

That page specifies a font-size:10px and that makes the text look tiny. Make sure that you use full page zoom.

• View > Zoom > [] Zoom Text Only

• http://kb.mozillazine.org/Zoom_text_of_web_pages

It works for every page except the bet365 which i need...really frustrating.

See if this helps;

NoSquint {web link} NoSquint allows you to adjust the text-only and full-page (both text and images) zoom levels as well as color settings both globally (for all sites) and per site.

This works fine for other sites but not bet365.

I have noticed that all the zoom tools don't work on the main website pages, but pop-ups can be resized fine.

Used IE and get no probs with that - but I don't want to use IE.

Thanks for all your help guys.

Finally managed to get through to bet365 technical. They thought nothing could change font sizes etc and were really suprised when I said IE11 does it fine but not Firefox. He had IE10 and CtRL + etc had no effect so his technical people are now looking at it.

I will post if they ever get back to me.