Firefox takes minutes to display a MP4 in a web page, Chrome takes seconds. Was not a problem a few weeks ago.
When trying to view a web page containing one or more MP4 Videos ( typically ~ 4 minutes long )
Firefox takes several minutes ( with the waiting dots "to & froing" till the page loads the videos and they are then playable. Chrome takes a few seconds for the same page ! My down load speed is just over 50MB/s
This has only started about a week or so ago. The pages have beem loaded using Xara Web Plus Designer. Previously to the last site update, two days ago, there was no problem. An example of one of the pages is www.catstrandukes.co.uk/videos_glentrool_dec_2017_a.htm. Even pages that were no problem a few weeks ago are also very slow to get the MP4, the pages themselves load straight away. I have uninstalled Firefox and re-installed it - same problem. It is not different contents of the cache - Chome is allways a few seconds even when its cache is cleared. Same on my laptop, which had not seen the new pages of the website.
Any ideas what has gone wrong?
الحل المُختار
jscher2000 said
There's something strange about this page when I look at the "Network Monitor" tool. As shown on the attached screenshot, it seems that the video is requested over and over. The 206 code on the left indicates partial content, which is common for large files, but when I click a song to look at the Headers on the right side, there are odd entries for the range. For example: 20 dec17 - Achey Breaky Heart.mp4 Note: sections of the video may be received out of order. Unless otherwise specified, Firefox requested that the video be sent from the beginning. .... snip.... Content-Length 20227461 Content-Range bytes 0-20227460/20227461 I can't see why there are so many requests, and so many failures.
Thanks 'jscher2000. This "rang a bell" that I seem to recall that though Xara Website Designer allows "dynamic width variations" for a site there was a warning that more than two might cause problems. My Catstrand site has three, Desktop / Tablet / Mobile. This worked fine in Chrome & Internet EXplorer, but was painfully slow to load the MP4s with Firefox & Edge.
So I have spent some time today, doing various "test versions" of the site:
a) Just a couple of pages, containing videos, and only the full size main varient. - Worked fine on all my test browsers. b) The full site but again only with the one full size varient. - Again worked fine - ~1 sec for a 50MB video . c) Now trying full site with The Main & Mobile sized varients.
No idea why it starting being a problem, unless site size or number of files caused the problem.
Oh well press on. Thank you for your assistance.
Read this answer in context 👍 0All Replies (11)
Did you do a ISP speed test to see if this wasn't ISP related as well?
WestEnd said
Did you do a ISP speed test to see if this wasn't ISP related as well?
Chrome displays the MP4s on the same page within with a few seconds, so I don't see how it can be anything other than something to do with Firefox.
You can check the Web Console (Tools -> Web Developer) for messages about blocked content and about the presence of mixed or unsafe content.
You can check the timings in the Network Monitor to see if there are excessive loading times.
If necessary use "Ctrl+F5" or "Ctrl+Shift+R" to reload the page and bypass the cache to generate a fresh log.
Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.
Please uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do :
- https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
- https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer
Reinstall with Current Release Firefox 57.0.4 with a Full Version Installer
Please let us know if this solved your issue or if need further assistance.
Why would this speed up downloading of MP4 files?. The page which "contains" the videos loads & opens immediately. It is the MP4 file which takes several minutes to download ready to play within the page. The H264 codec is installed and the files do eventually play. As I said Chrome loads and plays the video files within about a second; the exact time matching the file size with my 50Mg/s download speed.
There's something strange about this page when I look at the "Network Monitor" tool. As shown on the attached screenshot, it seems that the video is requested over and over. The 206 code on the left indicates partial content, which is common for large files, but when I click a song to look at the Headers on the right side, there are odd entries for the range. For example:
20 dec17 - Achey Breaky Heart.mp4 Note: sections of the video may be received out of order. Unless otherwise specified, Firefox requested that the video be sent from the beginning.
9.85 KB received -- far short of the 20MB promised in the Content-Range:
Content-Length 20227461 Content-Range bytes 0-20227460/20227461
19.29MB received -- complete!
Content-Length 20227461 Content-Range bytes 0-20227460/20227461
16.15MB received -- not enough
Content-Length 20227461 Content-Range bytes 0-20227460/20227461
199.68 KB received -- Firefox requested this chunk, very close to complete
Content-Length 206213 Content-Range bytes 20021248-20227460/20227461
9.85 KB received -- no good
Content-Length 20227461 Content-Range bytes 0-20227460/20227461
201.38 KB received -- Firefox requested this chunk, looks good
Content-Length 206213 Content-Range bytes 20021248-20227460/20227461
138.37 KB received -- Firefox requested this chunk, a bit short?
Content-Length 140677 Content-Range bytes 20086784-20227460/20227461
705.85 KB received -- Firefox requested this chunk, not fully received
Content-Length 3319173 Content-Range bytes 16908288-20227460/20227461
85.93 KB received -- not close...
Content-Length 20227461 Content-Range bytes 0-20227460/20227461
I can't see why there are so many requests, and so many failures.
Pkshadow said
Please uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do : Reinstall with Current Release Firefox 57.0.4 with a Full Version Installer Please let us know if this solved your issue or if need further assistance.
Why I say to do it is it takes less than 7mins, you do not loose anything and if a program file was corrupted it is replaced as well all the patch over patches of Netscape Browser are no longer there and running pure Quantum files. I do not do this for sake of doing. There are reasons. Follow them or not.
الحل المُختار
jscher2000 said
There's something strange about this page when I look at the "Network Monitor" tool. As shown on the attached screenshot, it seems that the video is requested over and over. The 206 code on the left indicates partial content, which is common for large files, but when I click a song to look at the Headers on the right side, there are odd entries for the range. For example: 20 dec17 - Achey Breaky Heart.mp4 Note: sections of the video may be received out of order. Unless otherwise specified, Firefox requested that the video be sent from the beginning. .... snip.... Content-Length 20227461 Content-Range bytes 0-20227460/20227461 I can't see why there are so many requests, and so many failures.
Thanks 'jscher2000. This "rang a bell" that I seem to recall that though Xara Website Designer allows "dynamic width variations" for a site there was a warning that more than two might cause problems. My Catstrand site has three, Desktop / Tablet / Mobile. This worked fine in Chrome & Internet EXplorer, but was painfully slow to load the MP4s with Firefox & Edge.
So I have spent some time today, doing various "test versions" of the site:
a) Just a couple of pages, containing videos, and only the full size main varient. - Worked fine on all my test browsers. b) The full site but again only with the one full size varient. - Again worked fine - ~1 sec for a 50MB video . c) Now trying full site with The Main & Mobile sized varients.
No idea why it starting being a problem, unless site size or number of files caused the problem.
Oh well press on. Thank you for your assistance.
Modified by GavinD
Pkshadow said
Pkshadow saidPlease uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do : Reinstall with Current Release Firefox 57.0.4 with a Full Version Installer Please let us know if this solved your issue or if need further assistance.Why I say to do it is it takes less than 7mins, you do not loose anything and if a program file was corrupted it is replaced as well all the patch over patches of Netscape Browser are no longer there and running pure Quantum files. I do not do this for sake of doing. There are reasons. Follow them or not.
Reply corrected
Modified by GavinD
Thanks Pkshadow I had already done that with just the same result. If my test mentioned above still does not work then I will try what you say again, making sure I do not miss any step. Thank you for your help. Regards
Gavin