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Can't load local flash files in firefox

Posted

Up until a week or so ago, I was able to run locally saved flash files through firefox on my computer.

Open folder on desktop, run.. 'stupid game.swf'. Play for a while, shut down, go on with day.

Worked for months.

Just a couple days ago, after not messing around with 'stupid game'.. I tried to open it.. and firefox comes up 'white screen'.. not working, where it was working just a week or so ago.

Try I.E... it loads there. Youtube works.. websites with embedded flash (kongregate, etc).. work fine.

Just, firefox itself doesn't seem to like local flash.

Have fixed issues like this in the past of deleting the file 'mimetypes' from my profile.. but, I dont seem to have one.

I've right clicked the .swf in my computer.. and it shows IE as acceptable.. but doesn't show firefox. Heck when I say 'add program' and browse to firefox and try to add it that way, it doesn't show up.

No I haven't installed anything (except maybe a game through steam) and no patches/updates.

Windows 7 here.

Up until a week or so ago, I was able to run locally saved flash files through firefox on my computer. Open folder on desktop, run.. 'stupid game.swf'. Play for a while, shut down, go on with day. Worked for months. Just a couple days ago, after not messing around with 'stupid game'.. I tried to open it.. and firefox comes up 'white screen'.. not working, where it was working just a week or so ago. Try I.E... it loads there. Youtube works.. websites with embedded flash (kongregate, etc).. work fine. Just, firefox itself doesn't seem to like local flash. Have fixed issues like this in the past of deleting the file 'mimetypes' from my profile.. but, I dont seem to have one. I've right clicked the .swf in my computer.. and it shows IE as acceptable.. but doesn't show firefox. Heck when I say 'add program' and browse to firefox and try to add it that way, it doesn't show up. No I haven't installed anything (except maybe a game through steam) and no patches/updates. Windows 7 here.

Chosen solution

There is a new security setting in Firefox 55 that supersedes everything else. Only SWF files retrieved on http:// or https:// addresses are played (not file://, ftp://, etc.). If you want to revert to the previous behavior:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful.

(2) In the search box above the list, type or paste plug*ht and pause while the list is filtered

(3) Double-click the plugins.http_https_only preference to switch the value from true to false

Read this answer in context 261

Additional System Details

Installed Plug-ins

  • Shockwave Flash 26.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0

More Information

aspis 1 solutions 58 answers

jscher2000 said Does the SWF file play in any other browser? </blockquote>

Yes, I already said that Internet Explorer plays .SWF files! (w/o any settings and w/o any prompt!)

''jscher2000 [[#answer-1061404|said]]'' Does the SWF file play in any other browser? </blockquote> Yes, I already said that Internet Explorer plays .SWF files! (w/o any settings and w/o any prompt!)
pdqpat 0 solutions 10 answers

cor-el said

This is about security. Local files have different security permissions and can access all data on you computer.

Interesting to know, but it might have been better policy to be more transparent about a major change like this. But if that's true, then will media downloaded to my local storage, then played it in a media player, also expose me to security problems?

''cor-el [[#answer-1004862|said]]'' <blockquote>This is about security. Local files have different security permissions and can access all data on you computer.</blockquote> Interesting to know, but it might have been better policy to be more transparent about a major change like this. But if that's true, then will media downloaded to my local storage, then played it in a media player, also expose me to security problems?