uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do : https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer

Reinstall with Current Release Firefox 57.0.2 with a Full Version Installer https://www.mozilla.org/firefox/all/

Please see if you can update your Video Card Drivers : AMD Radeon HD 5570 driverDate: 11-4-2015 https://support.amd.com/en-us/download

Please let us know if this solved your issue or if need further assistance.

Also make sure that you run Firefox in desktop mode and not in tablet mode.

i've tried this on 3 different PCs, all windows 10, all firefox v57.0.2. same problem exists on all 3. on one of the PCs, firefox was not installed.

the above did not solve my problem and as I said a week ago, i have the same problem with three different PCs, one of which had a clean install of firefox v57.0.2. any suggestions?

- Do the machines all have the same graphics card or chipset? - Does the issue occur in Firefox’s Safe Mode? - Could you have any mutual extensions or script blocking software on the machines? - Did you recently update all of them (or not instead) to e.g. a Creators Update? - Perhaps it’s related to a large font setting for Windows?

I would also have a look at this question to see if that offers any help.

If a page has the style rule overflow:hidden applied to the entire page, then no scroll bars are displayed. But you would expect all browsers to interpret the rule the same way, so... not sure what's going on.

Can you provide the address to the page with the problem links, or are all links affected?

the web app was fixed. the javascript open was using popup instead of popupf. this item can be closed

I am glad to hear that your problem has been resolved. If you haven't already, *Please select the answer that solves the problem*. This will help other users with similar problems find the solution more easily. Thank you for contacting Mozilla Support.