Has anyone else been having problems reading some pdfs using the Adobe Reader plugin for Firefox 3?
For several months this often (but not always) happens:
I follow a link to a .pdf, a new window opens with a blue progress bar in the middle.
It gets to 100%, but then nothing happens, it just sits there with the progress bar full and "Done" in the status bar.
Interestingly, I also have the "IE Tab" extension installed and if I click on the icon to change the browser engine, the page reloads (with a slightly different progress bar that includes a counter for the file size) and the document is always displayed correctly when the download is completed.
the Adobe Acrobat plug-in is v10.1.0.534.
Have you considered updating to Firefox 4?
I'm using both 5 and 6 (betas) and have no problems with PDFs in or out of IE Tab.
Is there an easy "return route" to FF3, if I try FF4 and don't like it?
You'll find previous versions there as well as the latest builds, but I honestly don't see why you'd not like 4.0. After all, this is Firefox we're talking about not IE, which seems to only get worse with each new release.