Firefox 3 crashes trying to open particular filetypes.

Sorry I was unclear.

Here's MY setup:

Windows Vista Ultimate (6.0, build 6001)
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3
Adobe CS3 Master Collection (which includes Adobe Acrobat 8 Professional [8.1.2])

The Mac I was referencing was my professor's Mac (which I assume he uses to save the PDFs). I have no idea what the version is.

You could try this pdf extension that allows you to convert a pdf to a normal webpage - https://addons.mozilla.org/en-US/fire...
In addition to Foxit, there is http://blog.kowalczyk.info/software/s... both of which allow you to set them as the viewer of pdf files automatically when clicking them in Firefox. They are external viewers though, so hopefully the extension does what you want without Adobe.

Here's an update, in order / response to the replies:

@Thomas - Uninstalling Reader / installing Foxit Reader didn't help. They're both external viewers, which works regardless of the software. It's integrated viewing in the browser I'm trying to accomplish, which used to work when reader was installed. NB: I'm actually using the full version of Acrobat 8 Pro as my PDF viewer, not Reader. This used to integrate into fx, and the PDFs would just display inside the page.

@bugmenot - The extension almost worked, but gave this error when trying to convert the PDF to HTML: "An error occured during the download of the PDF file. The file does not exist, or there was a problem during the download process." Sounds like a caught exception thrown by the error I posted in my OP. I didn't try the second link you gave, as my external PDF viewer (Acrobat 8 Professional) works fine.

So basically, I can download and view PDFs just fine in any external viewer, it's opening them inside of the browser window that is (currently) impossible.

thanks

My resolution is:

a. In Firefox 3 go to extra, options, set Adobe Acrobat Document to Use Adobe Reader 9.0
b. In Adobe Reader 9.0 go to preferences and set show PDF in Firefox

There are many "bad" pdf files about, I make some myself at times and have to go back and reset them, stack errors are common, if you know about programming in Zortech C++ you will know all about stack errors and stack space, this is something the programmers have to resolve for themselves and as it says it is best not to load them as Firefox checks this first. My exe files off Zortech C++ run wonderfully but can write trash to the base system on W 98 and DOS3 to later, but as the direct screen writes will not work on XP as far as I can see and Vista allows nothing they have fallen into disuse as the big Micro machine rolls across the universe to crash as a satellite into Mars. They need writing up to mouse pointer standard for XP but then that is now history as those who do not wish to do any work continually remind me, blaming everything on the past, that is to say somebody else. We can do it! make it work, they do not want to know, insurance claims you see, litigation law, compensation, it makes more money, the financial pension system would fail, etc. Basically computers have limited capacity formed by an electronic chip which is an up down swap system for 0 1 accumulations and PDF files can make large doc file small but take a lot of memory to do it and then fail in parts, heritage of the American museum for people who claim they have no history; most of us worked in Word or Wordstar up until recently but filing stuff has become very informative when it is right and deceitful when wrong, so if it fails to load I assume it was not worth the bother, or possibly hackers, and you can get better elsewhere. After all you had the intelligence to search and you know the system is wrong so perhaps the file has less in it than you know already from education, qualification and experience, or as Prof Kidson said question everything you are taught. These pdf usually turn up on remote less useful odd files so best avoid them, your computer operating is of more use than failed Mac files of bad pdf , which is why Firefox "deletes" them. Be careful there is rubbish out there (Hill Street Blues). At least you can keep working if you use books, paper, selected files and your ability and the computer will not crash, so you can type. So I am going off now to look for a way to stop Firefox crashing which my daughter found for hers. Apparently flash player may have something to do with it as we know from experience and there a lot of hook advertising scams that use pdf loads to lock into your system and guess where they emanate ? Usually west USA. You can also stop the dump jam by disabling the Microsoft error notification collection which often causes low memory on high system demand computers to collapse, so notice only goes back if you ask it to when not in the middle of work items. Also load updates when you want, not automatically, they often smash word documents and Firefox work. The advent of TV broadcast is wrecking computer stability and files of associated video ruin most access by simple delayed memory jamming and as these advertise they come up before you can read if the file is useful or not. Adobe needs to sort this out. Even Geograph has collapsed now due to irrelevant overloads. Suppliers of systems can rarely put in the hardware, that means a giant memory heavy, hot disk mass computer with raid arrays, gas fire controls, electricity of stable nature high load demands, full time staff these days shift 24 hour ... expensive and HOT so it needs a big "fridge" and Telecomms cannot provide the transfer rates, apparently this ends in March 2010 when systems upgrade or go to spread bandwidth and the experts say we should all notice the EMX changes, but is it an electronic piping system and it does block, so one has to be patient. For a "fast track" system ? that suits few of us. However I managed to disable Motorola who had three machines plugged on one junction when I used standard training practice and switched everything off at night, telecomms do not switch down at night !!! , but I was taught office standard and as a scientist I use technology with caution ... technologists just burn rubber and use the equipment until it collapses, switching off is not in their philosophy. They re-wired the secondhand warehouse they lived in as a consequence so it never happened again ... expanding as they went. Switching off is apparently not allowed As TV suggests with the blips we get across our screens on digital all the time, especially in rain storms and the shadow we receive on frost clear days and nights. Treat it with care it is a 12 v weak exchange system not a bulldozer, which most of us are used to. Mike Stagg Computers which are supposed to make work easier, sure do cause a lot of work, about ten to 12 times as much as you could have worked it yourself, with a slide rule, but then they give 200 options to select instead. Politicians love options, people like some options, shops are full of them. Define your parameters and stick with them, you have to be the expert at your end. Computation is consumption as you will know if you have been to the modern PC World Currys to try and keep up with modern computer demands as your favorite system struggles under the strains of old violin music practice. Everybody needs a friendly computer technical expert in their local town. Appreciate them they are like old rare, gold dust, not accumulated by plating technologists advertising the size of Fort Knox on TV. We cannot do it all by ourselves as plumbers will tell you.

I was taught office standard ... that is so I could type writing work, access computer facility and programme Lotus 123 R3 which I tried to use for cell sites for data set associations and did for Motorola graphics, not being an electronics of any sort, and then afterward bought the book and read Zortech C++ and wrote up the routines to Hydraulics, water flow and interactive in one month. Torturous but it works, however I had school physics and engineering drawing practice and some Algol Fortran understanding before that so I could follow flow chart theory taught by Employment Initiatives European Union funded experts. That does not help pdf but it does explain the preceding. Engineers are good people to work with but they demand rapid results !

I finally managed to get Firefox and windows sorted as suggested, using advice I had to disable the Adobe Edit/Preferences/Internet select pdf browser and re-enable it, but only after I has found the necessary dll file and downloaded, that about x blistering nanoseconds. Mike. It seems to work and I loaded down some Meerkat data. Highly useful soils information you see... or not ... not dot com, Real Kats, anyway lets not get into that. Gophers USA Bill Murray Golfers, Rikki Tikki Tavi Mongoose, Savannah Biogeography, rhinoceros scuffing soil surfaces, vegetation growth, Science.