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Thread: Firefox is extremely sluggish and flash notworking

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  1. #1
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    Firefox is extremely sluggish and flash notworking

    Some might say flash not working is good lol. But I need it for the odd site. Tried uninstalling etc etc.
    This is 16.04 version ubuntu mate clean install.

    Firefox, well, unbelievable lag. Clean install of this too. i.e.new profile.

    Machine is a sempron 1.2 gig with about 1.2 gig memory. Other stuff runs fine like libre office.

    Any ideas.

  2. #2
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    Re: Firefox is extremely sluggish and flash notworking

    Have you set Flash as click-to-play (or something equivalent)?

    In my about:config, I have
    Code:
    plugins.click_to_play;true

  3. #3
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    Re: Firefox is extremely sluggish and flash notworking

    Unfortunately the only way to get decent flash support on Linux is to use one of the Google Chrome family of browsers. Chromium is available in the Ubuntu repositories. I've been using Slimjet, which is based on Chromium but includes more privacy and security options such as being able to easily disable WebRTC. It also includes a built-in ad blocker which seems to work pretty well.

    http://www.slimjet.com/

    The only problem I've had is that Slimjet will occasionally bomb out on startup out saying it can't open its local database. The "fix" is to delete the file "~/.config/slimjet/Default/Web Data" when this happens. I have a command for this set up up as an alias in ~/.bashrc.

    Code:
    alias sjfix='rm ~/.config/slimjet/Default/Web\ Data'
    Also since Slimjet is not in the repositories, or available in a PPA as far as I know, you need to manually install updates.

    I still prefer Firefox overall but it's stuck with an ancient version of Flash that never worked all that well on Linux. (Firefox is also agonizingly slow initializing add-ons. Slimjet is much faster.)

  4. #4
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    Re: Firefox is extremely sluggish and flash notworking

    Well, I had not tried playing flash content yet since I installed ubuntu-mate. I have ubuntu-restricted-extras installed.

    For ex http://www.bfmtv.com/mediaplayer/live-video/ wont play, I have a white triangle "Play video" over a black background that does not do a thing. To note, https://helpx.adobe.com/flash-player.html shows the animation. The latest shown here is the one I got : http://www.adobe.com/software/flash/about/ Shockwave Flash 11.2 r202.
    I've read some content (such as the one I tried above, ie some content from French TV) require pipelight but I cannot be too bothered about it, youtube and dailymotion work although the fans quickly start blowing up. This VM had 3GB mem, 2 cores and 128MB video mem with 3D acceleration (max possible mem).

    Which site cannot play for you for ex ?

    Edit : once again I'm hit by my devils, search and experiment with an open tab that I do not reload before posting, sorry
    | My old and mostly abandoned blog |
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  5. #5
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    Re: Firefox is extremely sluggish and flash notworking

    Check your CPU flags:

    Code:
    inxi -f
    SSE2 is needed for Flash.

  6. #6
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    Re: Firefox is extremely sluggish and flash notworking

    Even if Firefox doesn't play nice with some Flash sites, that doesn't explain the overall sluggishness unless it's with specific reference to those Flash sites

  7. #7
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    Re: Firefox is extremely sluggish and flash notworking

    Quote Originally Posted by mefisto888 View Post
    Check your CPU flags:

    Code:
    inxi -f
    SSE2 is needed for Flash.
    sse2 here. As I said, some TV web sites here are known to require Microsoft plugins, which I wont get into
    | My old and mostly abandoned blog |
    Linux user #413984 ; Ubuntu user #178
    J'aime les fraises.
    Nighty night me lovelies!

    | Reinstalling Ubuntu ? Please check this bug first ! |
    | Using a ppa ? Please install ppa-purge from universe, you may need it should you want to revert packages back |
    | No support requests / username changes by PM, thanks. |
    [SIGPIC][/SIGPIC]

  8. #8
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    Re: Firefox is extremely sluggish and flash notworking

    Quote Originally Posted by mefisto888 View Post
    Check your CPU flags:

    Code:
    inxi -f
    SSE2 is needed for Flash.
    Code:
    inxi -f
    CPU:       Single core AMD Sempron 2200+ (-UP-) cache: 256 KB
               speed: 1505 MHz (max)
               CPU Flags: 3dnow 3dnowext 3dnowprefetch apic cmov cx8 de fpu fxsr
               mca mce mmx mmxext mp msr mtrr pae pat pge pse pse36 sep sse
               syscall tsc vme vmmcall
    Got sse. flash was working before on this machine under 10.04.

  9. #9
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    Re: Firefox is extremely sluggish and flash notworking

    Ok progress on Firefox. From https://sites.google.com/site/easyli...roject/firefox
    Section 8.
    Not at machine now to try flash suggestions.
    Thanks for replies

  10. #10
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    Re: Firefox is extremely sluggish and flash notworking

    When it comes to "extremely sluggish" you can try to switch from Marco Software Compositor (by default in Ubuntu MATE) to No Compositor.

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