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'No video with supported format and MIME type found' issue

Hello everyone, sorry for the long post. For the last 3 days, I have been experiencing a very frustrating issue with videos posted ONLY on Facebook. Every time I try to o… (read more)

Hello everyone, sorry for the long post.

For the last 3 days, I have been experiencing a very frustrating issue with videos posted ONLY on Facebook.

Every time I try to open a Facebook video, the Facebook player opens (the one where you can see comments and likes on the right side), and Firefox gives the impression that the video is loading. But after a while, a 'cross' appears in the middle of the screen, below which 'No video with supported format and MIME type found' is written [Kindly refer to the attached screenshot].

Prior to this problem, I had NEVER, in 2 years, experienced any issue whatsoever with playing ANY videos on the Web. Firefox just suddenly decided to stop playing Facebook videos.

WHAT I ALREADY TRIED: - Reload video pages and play them again (FAILED) - Clear cache, cookies and restart Firefox (FAILED) - Start Firefox in Safe Mode (FAILED) - Uninstall Flash Player, try to play videos with the default Firefox player (any video on the Web would play, but Facebook videos FAILED) - Enable the Open H264 Cisco codec (FAILED) - Changing a few values in about:config *(such as media.directshow.enabled) to true/false (FAILED) - Refresh Firefox from https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings (FAILED)

ADDITIONAL INFORMATION: - I use Firefox 35.0.1 and have no other browser (besides the default Internet Explorer 6 which I never use) - I use Windows XP SP3 Professional - I have not downloaded/installed any software/extension/add-on which could have caused this problem

I still love Firefox, and have no intention of migrating to a competitor's browser, which is why I hope a prompt solution shall be found. As well, I am not considering dropping XP SP3 anytime soon; it is very stable and fulfills my requirements.

Thanking you for your time.

Asked by EL20 6 years ago

Answered by FredMcD 6 years ago

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force complete page refresh

I would like to be able to completely refresh all scripts, images and code (absolutely everything on the page) when I click refresh for a tab. I am a web designer and fi… (read more)

I would like to be able to completely refresh all scripts, images and code (absolutely everything on the page) when I click refresh for a tab. I am a web designer and firefox often serves up old content, regardless of whether I manually empty the cache or click refresh multiple times on a page. I tried some chanegs in the config file too which I saw for earlier versions of firefox but they don't seem to have helped. Any suggestions similar to cmd-shift-r that force a complete refresh of a page would be very much appreciated. Even if there is a way to turn caching off completely so that surfing the web was slower that would be preferable to be able to test site updates correctly. I use firebug so if there is an option in there for forcing full refresh of pages that could also help. I am using the most current version of firefox (43.0.4). Thanks

Asked by eyetooth 5 years ago

Answered by Qantas94Heavy 5 years ago

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command line parameters for firefox

I am running program which open "chromium-browser" with following command-line parameters in Linux. --incognito = Causes the browser to launch directly in incognito mode.… (read more)

I am running program which open "chromium-browser" with following command-line parameters in Linux.

--incognito = Causes the browser to launch directly in incognito mode. ↪

--no-first-run = Skip First Run tasks, whether or not it's actually the First Run. Overridden by kForceFirstRun.

                   This does not drop the First Run sentinel and thus doesn't prevent first run from occuring the 
                   next time chrome is launched without this flag. 

--disable-save-password-bubble

--password-store = Specifies which password store to use (detect, default, gnome, kwallet). --password-store=basic

--no-default-browser-check = Disables the default browser check. Useful for UI/browser tests where we want to avoid having

                               the default browser info-bar displayed.

--window-size = Specify the initial window size: --window-size=w,h --window-size=1024,1024

--app = Specifies that the associated value should be launched in "application" mode.


Now I want to do the same thing with "firefox" browser. I need help to find firefox command-line parameter for firefox which is similar to chromium-browser.

I searched firefox website but not able to find alternatives for same.

Thanks in Advance.

Asked by manojpalhade 5 years ago

Answered by manojpalhade 5 years ago

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Firefox can't establish a connection to the server at www.nsanedown.com

Please tell me what to do to solve this problem. This is the only site that Firefox keeps giving me the attached message for. Not using a proxy and firewall is not causin… (read more)

Please tell me what to do to solve this problem. This is the only site that Firefox keeps giving me the attached message for. Not using a proxy and firewall is not causing any problems. You can use my email as long as this problem can be fixed.

Asked by Ore1 6 years ago

Answered by FredMcD 6 years ago

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complete uninstall firefox on the OSX 10.9

My Firefox is having issues with locating sites like msn.com and google. The sites work as they should on Safari. I would like do you a full UN-install with all file tha… (read more)

My Firefox is having issues with locating sites like msn.com and google. The sites work as they should on Safari. I would like do you a full UN-install with all file that may be in the user/lib and system/lib and preferences on Mac OSX 10.9

Asked by jtzeng 5 years ago

Answered by FredMcD 5 years ago

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Can't select from drop down menus on any website

I am on OSX.7.5 (old machine, cannot update.) Was just upgraded to Firefox 41.0.1. I can no longer select from any drop down list on any website. Prior to the upgrade, I … (read more)

I am on OSX.7.5 (old machine, cannot update.) Was just upgraded to Firefox 41.0.1. I can no longer select from any drop down list on any website. Prior to the upgrade, I could always select from drop down menus or autofill. There have been no other updates to any other software prior to this problem showing up. A few examples are: - I go to a website where it is asking for Name, Address, etc. The window shows up with prior entries, but I cannot highlight and select any option. - I am entering data such as credit card info, where I am required to select entries for the card type, expiration date, etc. Again, I cannot highlight or select my entries.

In most cases, I can type the entry (the whole thing, not just the first few characters) and hit "enter," to fill in the field. However, this is both annoying and does not always work.

I have restarted in Safe mode; no change to this problem. I have tried using autofill-type AddOns; still get the same problem.

Any ideas? Thanks.

Asked by grace 6 years ago

Answered by grace 6 years ago

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i have to refresh webpage each time before i can click the next link- how fix?

Hi, I have been searching through the internet for a resolution, but each mention of an add-on or such for firefox leads to no-longer working pages it seems. When I visit… (read more)

Hi, I have been searching through the internet for a resolution, but each mention of an add-on or such for firefox leads to no-longer working pages it seems.

When I visit a website that has,for example, a list of 12 tips on a subject, (like 12 ways to annoy your cat ;)), it might show he first one, then i am supposed to click the forward arrow to see the next tip. However, i often find that it will not advance, unless i first refresh the page, then re-click the arrow, every single timei want to advance!

Is there a fix for this, or a good, updated add-on to auto-refresh?

Thanks for any help!

Asked by coatli 5 years ago

Answered by cor-el 5 years ago

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How can I prevent Firefox from opening iTunes or asking me what application I want to use for itms/itmss links?

When I open an iTunes App Store link, Firefox wants to automatically open iTunes. In Options>Applications, I found content types itms and itmss, which cause this beha… (read more)

When I open an iTunes App Store link, Firefox wants to automatically open iTunes. In Options>Applications, I found content types itms and itmss, which cause this behavior. I can change them to "Always ask", but when I do, I get a the pop-up every time I open link asking me to pick between "iTunes" or "Choose an Application." To prevent future pop-ups, I can check "Remember my choice for itmss links" but only after selecting iTunes or another application. There should be a third option there for "Do Nothing." Is there some way to tell Firefox to completely ignore itms/itmss content?

Asked by tehansweris42 6 years ago

Answered by tehansweris42 6 years ago

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links won't work - unless I FIRST "open in new tab", then they do

For this web site: http://ulsterhabitat.org/ in the post Ulster Habitat News (facebook) (third image, first small one), the link to the facebook page will only open if: I… (read more)

For this web site: http://ulsterhabitat.org/ in the post Ulster Habitat News (facebook) (third image, first small one), the link to the facebook page will only open if: I right click on it and choose "open in new tab" (It does not matter if I give focus to the new tab or not), then I left click on the link and it works. If I left click on the link first, nothing happens. (link says "Ulster Habitat Facebook").

What I have done: run in safe mode, refreshed Firefox, reinstalled Firefox 43.0.3 (with all profile data removed - as clean as could be) with no extensions, altered settings or add-ons. Behavior is always the same.

System is Windows 7 Pro, latest up-to-date version, but Firefox also does this on a W7 Home system, and a W10 Home system, both with latest Firefox. No Firefox extensions or add-ons on the W10 machine.

Bonus: Chrome 47.0.2526.106 does not do this (it opens the link immediately). IE 11.0.26 does just what Firefox does. It would seem to me that the link should either work or not work, but not depend on opening in a new tab first. Fascinated by this. Thank you. Tim

Asked by td50 5 years ago

Answered by cor-el 5 years ago

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Firefox update blocked by firewall

Yesterday I've got a report from one company about Firefox update being blocked by their firewall. Once it's on, the update fails. Turning it off fixes the update problem… (read more)

Yesterday I've got a report from one company about Firefox update being blocked by their firewall. Once it's on, the update fails. Turning it off fixes the update problem, but also open their network, which is not desired. I advised to whitelist domains mentioned in article https://developer.mozilla.org/en-US/docs/Mozilla/Setting_up_an_update_server (aus2.mozilla.org and download.mozilla.org), but seems it did not help. Firefox update still failed with "Update failed" message. So what servers Firefox needs access to during the update process so they can whitelist them?

EDIT: Just to add, before whitelisting the mentioned domain, Firefox won't be able to even find the update. Now the update if found, but fails when downloading.

Asked by Michal Stanke 5 years ago

Answered by Michal Stanke 5 years ago

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Firefox will not open up in Windows 7.

Firefox has stopped working in my computer. I have uninstalled and reinstalled 3 times now, and it will not load up. Many articles online instruct me to clean cookies, … (read more)

Firefox has stopped working in my computer. I have uninstalled and reinstalled 3 times now, and it will not load up. Many articles online instruct me to clean cookies, etc. but I cannot do anything if the program doesn't load. It does not even show as loaded in my Windows Task Manager. Please advise.

Asked by wild4hummies 6 years ago

Answered by wild4hummies 6 years ago

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Can't add items to shopping cart?

Hi, no matter what shopping site I am on, I cannot add items to my shopping cart. I am new to Firefox - was using Chrome before. I've never had this issue. Thank you … (read more)

Hi, no matter what shopping site I am on, I cannot add items to my shopping cart. I am new to Firefox - was using Chrome before. I've never had this issue. Thank you Monika

Asked by MStuart0626 6 years ago

Answered by FredMcD 6 years ago

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certificate problems and websites don't load properly

The problem started with Outlook.com not wanting to send attachments all of a sudden. Unfortunately I let somebody from the Microsoft support mess about with my computer … (read more)

The problem started with Outlook.com not wanting to send attachments all of a sudden. Unfortunately I let somebody from the Microsoft support mess about with my computer through a remote app and now it's gone from bad to worse. On every site I visit, I get the This connection is untrusted error and when I just go through to the site, the website doesn't show properly. I don't get images, just the words as links. I then reset my system a couple of days back through system restore but that didn't help. I have uninstalled Firefox and downloaded a new version. Still the same problem. I have deleted cert8 but that didn't help either. I know the guy did something in Troubleshoot Problems so my guess is that he deleted a certificate of some sort but I don't know how to get it back. My partner uses Firefox and he has the same problem at the moment that Outlook.com can't attach files.

I hope someone can help me as I'm at my wits end at the moment. Thanks. (I'm surfing in Chrome at the moment as Firefox doesn't work)

Asked by nicky25 5 years ago

Answered by christ1 5 years ago

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Stop auto redirect; stop country specific code from being added after .com

I'm an American living in Brazil. When I want to visit an international company's USA website, my browser automatically adds .br (Brazil) after .com to take me to the com… (read more)

I'm an American living in Brazil. When I want to visit an international company's USA website, my browser automatically adds .br (Brazil) after .com to take me to the company's Brazilian website. How do I stop this? Walmart is one (but NOT the only) example. If I type www.walmart.com, I am automatically redirected to www.walmart.com.br. Grrrr ~ so stupidly frustrating!

Asked by NeraBianco 6 years ago

Answered by NeraBianco 6 years ago

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Permanently deleting history from firefox account

I cleared the browsing history on my main computer with sync turned on. Then I went and set up a print server, installed firefox and signed into sync my account to access… (read more)

I cleared the browsing history on my main computer with sync turned on. Then I went and set up a print server, installed firefox and signed into sync my account to access saved bookmarks for printing, and all the history that I had previously deleted was again loaded. How can I delete browsing history so it is also deleted from my account? This seems like a serious privacy concern not to be able to clear synced history, and hopefully there is a way aside from deleting one's account?

Asked by gothicsurf 5 years ago

Answered by FredMcD 5 years ago

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Падения

постояные падения, в безопасный режим заходит, работает какое то время и падает, последняя ошибка Crash ID: bp-ab6058d9-b927-4627-8b53-7e5262141230, антивирусные программ… (read more)

постояные падения, в безопасный режим заходит, работает какое то время и падает, последняя ошибка Crash ID: bp-ab6058d9-b927-4627-8b53-7e5262141230, антивирусные программы тоже не устанавливаются, касперский написал не хватает цифровой подписи и не завершил установку, аваст тоже не установился, проблема также есть сбраузером опера

Asked by irina1 6 years ago

Last reply by cor-el 6 years ago

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Bookmarks are not working

I have Firefox 44.0.2 but this problem has been going on even on previous versions. If I click on the star it goes through the motions of placing a bookmark. I even see t… (read more)

I have Firefox 44.0.2 but this problem has been going on even on previous versions. If I click on the star it goes through the motions of placing a bookmark. I even see this animation of a star moving to the list of bookmarks. But when I go into the bookmarks they are not listed. I have tried right clicking on the page and clicking the star and I have tried it form the tool bar. Neither works. I have also renamed the places.sqlite to places.sqlite.old and that doesn't seem to do a thing.

Asked by twnorman 5 years ago

Answered by twnorman 5 years ago

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How do I open an external link in an active private window?

When I open a link from another application and I am using Private Mode in Firefox -- and the private window is the most recent active window in Firefox -- how can I make… (read more)

When I open a link from another application and I am using Private Mode in Firefox -- and the private window is the most recent active window in Firefox -- how can I make firefox open the link in the private window?

To clarify by example: Firefox is my default browser. I am browsing in private mode and I want to open links from an email in my OS's mail client so they open in the private window (ideally in a new tab in the private window), not a non-private window. At the moment, external links open in a non-private window no matter what.


There was a time that Firefox would do this, but it does not do it any more. I think I may have killed this function the last time I reset Firefox. Is it possible that I had changed a setting in about:config to make Firefox behave how I want it to? If so, which setting is it!

FWW. I have tried changing the following preferences in about:config with no success:

browser.link.open_newwindow.overtide.external browser.link.open_newwindow.restriction

I've also found something like this mentioned in bug reports, but I'm not sure if I understand the resolution. If I do, then the resolution is that opening in a non-private window no matter what is intentional and there is no desire to add an option to change this behavior in Firefox. However, what seems to be missing from these reports is the fact that the Private window is the active window. It seems to me that links should always open in the active window, even if the active window is a private window, if the browser is commanded to do so. Otherwise, the browser is not behaving as expected.

Technical info:

Mac OS 10.11.4 Firefox 46.0b11 (yes, the beta channel)

Asked by COMSAT1 5 years ago

Answered by jscher2000 5 years ago

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Błąd "Program Firefox przestał działać"?

Po aktualizacji programu Firefox przy każdym zamykaniu programu pojawia się komunikat o błędzie "Program Firefox przestał działać. Wyszukaj rozwiązanie w trybie online lu… (read more)

Po aktualizacji programu Firefox przy każdym zamykaniu programu pojawia się komunikat o błędzie "Program Firefox przestał działać. Wyszukaj rozwiązanie w trybie online lub Zamknij program"

Asked by Reni82 6 years ago

Answered by cor-el 6 years ago