Setting up five new Acer Veriton E430G Windows 7 x64 desktop machines for work, each has been Windows live updated to latest spec as of end of March '14. All were brand n… (read more)
Setting up five new Acer Veriton E430G Windows 7 x64 desktop machines for work, each has been Windows live updated to latest spec as of end of March '14. All were brand new factory pre-installed Windows 7 x64, all have had the same set of software individually installed, Adobe Flash player, Adobe Shockwave, Acrobat Reader, QuickTime, Oracle Java 8x32 and x64, Picasa, 7-Zip, LibreOffice, Skype and of course Firefox 28.0. All have the exact same behaviour in that when the "Welcome to Firefox" first run page displays, it displays in text only with a large grey box "No video with supported format and MIME type found. If you go to Tools\Add-Ons\Get Add-ons, the internal page displays in full text only as well - no graphics, same problem when you load "Plugins" page and click "Check to see if your plugins are up to date", the following page/tab loads as text only.
After taking one of the machines brand new out of box and creating an Acronis snapshot of the entire drive [factory install before first run] using it as a test install, I played around with a number of software / driver / updates / Firefox add-ins scenarios trying to get to the bottom of this. I have come to a dead end in as much as all runs great within Firefox, web pages from all internal pages and many on-line websites render correctly when I load a previous version of Firefox [v26.0 or v25] rather than the latest v28.0 onto each of the machines, I tried v27.01 & v27.0, these gave the same text based pages. This has been replicated successfully on the other four machines with all of the above listed latest software versions installed [no AntiVirus software installed yet as not fully in use in Office yet], change nothing else other than load the latest version v28.0 Firefox and the problem reappears.
I did for the sake of completeness test the brand new factory install just past 'first boot set-up' and first time desktop hello, let everything settle and installed Firefox v28.0, [tested with v27.01 & v27.0] this too exhibits the exact same text only page rendering on internal Firefox pages. Yet again, over install Firefox v26.0, clear history and the same pages start loading correctly.
I am open to suggestions regards a fix for this as I really do not want to leave the machines with old version Firefox installed on each desktop. I would also prefer not to allow each member of staff to install Google Chrome. The on-line web pages that were found to be loading as text only within Firefox 28.0 were tested and rendered correctly within Chrome 33.0.1750.154 and IE 11, this would indicate something to be clashing with Firefox or Firefox not behaving with something else. I would like to get this resolved.