Hit something on the keyboard that made Facebook too small but other websites are fine.
Was trying to make a "heart" last night and had the control key pressed while missing the "<" - don't know what I pressed but the Facebook screen went small as did my Yahoo home page. Then hit Control 0 which fixed the home page and all other web pages but Facebook is still small. Can't get it fixed.
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Press ctrl + + or ctrl + scroll key
You may have hit your zoom control.
<Control> + (plus) enlarge <Control> - (minus) reduce <Control> 0 (zero) restore
This fixes the problem temporarily but is not a permanent solution.
Control 0 fixed all other websites but Facebook, which is still the same.
Hello,
The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: This will cause you to lose any Extensions and some Preferences.
- Open websites will not be saved in Firefox versions lower than 25.
To Reset Firefox do the following:
For Firefox versions previous to 29.0:
- Go to Firefox > Help > Troubleshooting Information.
- Click the "Reset Firefox"
button.
- Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
- Firefox will open with all factory defaults applied.
For Firefox 29.0 and above:
- Click the menu button
, click help 
and select Troubleshooting Information.
Now, a new tab containing your troubleshooting information should open.
- At the top right corner of the page, you should see a button that says "Reset Firefox". Click on it.
- Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
- Firefox will open with all factory defaults applied.
Further information can be found in the Refresh Firefox - reset add-ons and settings article.
Did this fix your problems? Please report back to us!
Thank you.
You can rename (or delete) the content-prefs.sqlite file to content-prefs.sqlite.old in the Firefox profile folder to reset the page zoom for all websites.
You can use this button to go to the currently used Firefox profile folder:
- Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
Thanks for all the comments. After living with this issue for 2 days, it was corrected after posting my question on this blog. Wondering if it was done for me? Anyway, thank you.