Hi, please try : uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files , C:\Program Files(x86) & C:\ProgramData 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 59.0.3 with a Full Version Installer

• https://www.mozilla.org/firefox/all/

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

Please uninstall and reinstall your Video Card Drivers for your : AMD Radeon(TM) R5 Graphics driverDate: 3-19-2017 Drivers are released monthly for this card. https://support.amd.com/en-us/download

failures: [u'GP+[GFX1-]: [D3D11] 2 CreateTexture2D failure Size: Size(608,1080)texture11: false Code: 0x887a0005', u'GP+[GFX1-]: D3D11 swap chain failed to present: 0x887a0005', u'CP+[GFX1-]: [D2D1.1] 4CreateBitmap failure Size(64,16600) Code: 0x80070057 format 0', u'CP+[GFX1-]: [D2D1.1] 4CreateBitmap failure Size(64,16600) Code: 0x80070057 format 0', u'CP+[GFX1-]: [D2D1.1] 4CreateBitmap failure Size(64,16600) Code: 0x80070057 format 0', u'CP+[GFX1-]: [D2D1.1] 4CreateBitmap failure Size(64,16600) Code: 0x80070057 format 0', u'CP+[GFX1-]: [D2D1.1] 4CreateBitmap failure Size(64,16600) Code: 0x80070057 format 0', u'GP+[GFX1-]: [D3D11] 2 CreateTexture2D failure Size: Size(608,1080)texture11: false Code: 0x887a0005', u'GP+[GFX1-]: D3D11 swap chain failed to present: 0x887a0005', u'GP+[GFX1-]: [D3D11] 2 CreateTexture2D failure Size: Size(608,1080)texture11: false Code: 0x887a0005', u'GP+[GFX1-]: D3D11 swap chain failed to present: 0x887a0005', u'GP+[GFX1-]: D3D11 swap chain failed to present: 0x887a0005', u'GP+[GFX1-]: D3D11 swap chain failed to present: 0x887a0005', u'GP+[GFX1-]: D3D11 swap chain failed to present: 0x887a0005', u'GP+[GFX1-]: D3D11 swap chain failed to present: 0x887a0005', u'GP+[GFX1-]: D3D11 swap chain failed to present: 0x887a0005']

You will also want to do this : https://www.howtogeek.com/302595/how-to-stop-windows-10-from-automatically-updating-hardware-drivers/

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

Hello Pkshadow,

I didn't really understand the detail of your 2nd reply above however undertook the uninstall and fresh download/intall and that seems to have done the trick.

Not sure how to 'pin' disk cleanup but that's ok ... manually do that as a maintenance procedure.

Thanks v. much for your imput. I'm keeping the 2nd response and will study that over time.

Welcome. Please Mark this with solved with the answer that was the solution so others can find it.

If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block (wanted) content (Adblock Plus, NoScript, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block (wanted) content.

• make sure your extensions and filters are updated to the latest version
• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

You see the shield icon at the left end of the location/address bar in case content is blocked by Tracking Protection.

• click the shield icon for more detail and possibly disable the protection
• check the Web Console for more detail about what content is blocked by Tracking Protection
• "3-bar" menu button or Tools -> Web Developer

• https://support.mozilla.org/en-US/kb/tracking-protection-firefox

Thanks cor-el & Pkshadow.