When opening, firefox keeps checking if my extensions work in new verision, and shows me what's new page.

As the title says, every time I start Firefox, it thinks that the update is new. Checks extensions and shows what's new page.

Did you try to delete the prefs.js file and a possible user.js file?
It is also possible that there is a problem with the file(s) that store the extensions registry.
Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.
*https://support.mozilla.org/kb/Profiles
New files will be created when required.
See "Corrupt extension files":
*http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
*https://support.mozilla.org/kb/Unable+to+install+add-ons
If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to check if there is a compatibility update available.

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    Install, update, and run these programs in this order. They are listed in order of efficacy.<br />'''''(Not all programs detect the same Malware, so you may need to run them all to solve your problem.)''''' <br />These programs are all free for personal use, but some have limited functionality in the "free mode" - but those are features you really don't need to find and remove the problem that you have.<br />
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    [http://www.spywarewarrior.com/index.php] <br />
    [http://forum.aumha.org/] <br />
    [http://www.spywareinfoforum.com/] <br />
    [http://bleepingcomputer.com]

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    make http:/www.google.com your home page
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    duplicate, please continue https://support.mozilla.org/en-US/questions/954002

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    problem as stated in title
    All Crash Reports
    Extensions
    Name Version Enabled ID
    DownloadHelper 4.9.22 true {b9db16a4-6edc-47ec-a1f4-b86292ed211d}
    MySearchDial 9.5.5.1 true {ad9a41d2-9a49-4fa6-a79e-71a0785364c8}
    RoboForm Toolbar for Firefox 7.9.6.7 true {22119944-ED35-4ab1-910B-E619EA06A115}
    AVG SafeGuard toolbar 18.1.7.598 false avg@toolbar
    BitComet Video Downloader 1.36 false {B042753D-F57E-4e8e-A01B-7379A6D4CEFB}
    HP Smart Web Printing 4.51 false [email protected]
    Important Modified Preferences
    Name Value accessibility.typeaheadfind.flashBar 0
    browser.cache.disk.capacity 358400
    browser.cache.disk.smart_size_cached_value 358400
    browser.cache.disk.smart_size.first_run false
    browser.cache.disk.smart_size.use_old_max false
    browser.places.smartBookmarksVersion 7
    browser.search.useDBForOrder true
    browser.sessionstore.upgradeBackup.latestBuildID 20140605174243
    browser.startup.homepage https://www.foreclosehouston.com/FLS/FLSWEB/NewPage3/Login.aspx
    browser.startup.homepage_override.buildID 20140605174243
    browser.startup.homepage_override.mstone 30.0
    browser.tabs.warnOnClose false
    dom.max_chrome_script_run_time 0
    dom.mozApps.used true
    extensions.lastAppVersion 30.0
    font.internaluseonly.changed false
    gfx.direct3d.last_used_feature_level_idx 0
    network.cookie.prefsMigrated true
    places.database.lastMaintenance 1405526590
    places.history.expiration.transient_current_max_pages 104858
    plugin.disable_full_page_plugin_for_types application/pdf,application/vnd.adobe.xfdf,application/vnd.fdf,application/vnd.adobe.xdp+xml
    plugin.importedState true
    privacy.sanitize.migrateFx3Prefs true
    privacy.sanitize.timeSpan 0
    storage.vacuum.last.index 1
    storage.vacuum.last.places.sqlite 1405094265
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    Graphics
    Adapter Description Intel(R) HD Graphics 4000
    Adapter Description (GPU #2) NVIDIA GeForce GT 650M
    Adapter Drivers igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32
    Adapter Drivers (GPU #2) nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
    Adapter RAM Unknown
    Adapter RAM (GPU #2) 1024
    Device ID 0x0166
    Device ID (GPU #2) 0x0fd1
    Direct2D Enabled true
    DirectWrite Enabled true (6.2.9200.16571)
    Driver Date 2-14-2012
    Driver Date (GPU #2) 3-4-2012
    Driver Version 8.15.10.2653
    Driver Version (GPU #2) 8.17.12.9616
    GPU #2 Active false
    GPU Accelerated Windows 3/3 Direct3D 10
    Vendor ID 0x8086
    Vendor ID (GPU #2) 0x10de
    WebGL Renderer Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D9Ex vs_3_0 ps_3_0)
    windowLayerManagerRemote false
    AzureCanvasBackend direct2d
    AzureContentBackend direct2d
    AzureFallbackCanvasBackend cairo
    AzureSkiaAccelerated 0
    JavaScript
    Incremental GC true
    Accessibility
    Activated false
    Prevent Accessibility 0
    Library Versions
    Expected minimum version Version in use
    NSPR 4.10.6 4.10.6
    NSS 3.16 Basic ECC 3.16 Basic ECC
    NSSSMIME 3.16 Basic ECC 3.16 Basic ECC
    NSSSSL 3.16 Basic ECC 3.16 Basic ECC
    NSSUTIL 3.16 3.16
    VIEW BELOW PHOTOBUCKET LINK FOR PICTURE
    http://i1125.photobucket.com/albums/l582/johnnnyjeans/firefoxtabproblem_zpsd7abf882.jpg
    Thank you.
    - johnny

    I think the tiny MySearchDial logo in the bottom left corner gives it away. That is one of your extensions. However, I believe it installs through the Windows Control Panel, so I suggest starting there.
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