It seems FDM can't find your Firefox user profile, because the profile doesn't exist (deleted or not created yet) or has been moved to another place. Have you read the FDM FAQ about Firefox troubleshooting?

Usher wrote:It seems FDM can't find your Firefox user profile, because the profile doesn't exist (deleted or not created yet) or has been moved to another place. Have you read the FDM FAQ about Firefox troubleshooting?

I have read FAQ and saw a notice about non existing FF profile. The problem is that my profile exists since 4 years at least and had no problems with it so far. It was used with FF, nightlies and as far as I remember other forks of Firefox without problem. It worked with earlier FDM with no problems too until update to FF 35 (now 35.0.1) and FDM 1482 so it's why I'm asking here. My current setup is:

Windows 7 x64 Ultimate
Firefox 35.0.1 (x86 en-US)
profile located in:
C:\Users\$MYNAME\AppData\Roaming\Mozilla\Firefox\Profiles\$MYPROFILE.default
C:\Users\$MYNAME\AppData\Local\Mozilla\Firefox\Profiles\$MYPROFILE.default
There is also profiles.ini in C:\Users\$MYNAME\AppData\Roaming\Mozilla\Firefox

zurdar wrote:I have read FAQ and saw a notice about non existing FF profile.

Close Firefox and FDM, create a new Windows user account, log in to it, run Firefox to create a new clean profile, close Firefox, run FDM and turn on Firefox monitoring, then run Firefox again and allow FDM plugin activation. Test some download.
If it's all OK, close Firefox and FDM, go back to your old Windows user account and follow all the FDM FAQ for Firefox troubleshooting suggestions.

TomGI wrote:When will the extension be supported by 35.0.1?

When will you start to read before posting?
Current FDM plugin for Firefox is compatible with current stable and beta Firefox versions.
See
viewtopic.php?f=1&t=16856
viewtopic.php?f=1&t=16800
If you have problems with proper installation, read FDM FAQ for Firefox troubleshooting, please.

TomGI wrote:When will the extension be supported by 35.0.1?

I had the same problem. After a blue-screen-crash in Windows Firefox claimed the FDM plugin to be incompatible.
I solved the problem by deleting all files/folders in C:\ProgramData\Free Download Manager\Firefox\Extensions and simply reinstalled FDM (fdminst.exe).
HTH

Clint62 wrote:

TomGI wrote:When will the extension be supported by 35.0.1?

deleting all files/folders in C:\ProgramData\Free Download Manager\Firefox\Extensions

It's already described in FDM FAQ for Firefox troubleshooting, step 8.
HTH

FDM 3.9.5 RC build 1515 or FDM 3.9.4 build 1485 and Firefox 36.0

everytime when I open FDM it ask me about enable Firefox extension, even when is already enabled inside Firefox.

FIXED in FDM 3.9.5 RC build 1519.

MELERIX wrote:everytime when I open FDM it ask me about enable Firefox extension...

It seems that Firefox still tries to use some files from older FDM plugins.
Follow the FDM FAQ for Firefox troubleshooting and remove all remnants including Firefox startup cache.
See also that message: viewtopic.php?f=1&t=17016&view=unread#p39991

Usher wrote:

MELERIX wrote:everytime when I open FDM it ask me about enable Firefox extension...

It seems that Firefox still tries to use some files from older FDM plugins.
Follow the FDM FAQ for Firefox troubleshooting and remove all remnants including Firefox startup cache.
See also that message: viewtopic.php?f=1&t=17016&view=unread#p39991

already tried but the issue still persist, even with clean install of FDM.

Usher wrote:It seems that Firefox still tries to use some files from older FDM plugins.
Follow the FDM FAQ for Firefox troubleshooting and remove all remnants including Firefox startup cache.
See also that message: viewtopic.php?f=1&t=17016&view=unread#p39991

nope, was not that, it was an issue in FDM, now is fixed in FDM 3.9.5 RC build 1519.

3.9.5 RC build 1519 (2015-3-5)

Changes:
[*] Flash video monitoring DLL can be downloaded as additional component via settings.
[-] Chrome: "download with FDM" did not work with magnet links.
[-] Firefox: problem detecting extension enabled state.
[-] General bug fixes.

MELERIX wrote:[-] Firefox: problem detecting extension enabled state.

Me no stupido.

I've been waiting for someone to confirm that it works.

Mozilla developers once again have changed addon management. Starting from Firefox 36 there is no fdm_ffext@freedownloadmanager.org file - it's data are kept now in extensions.xpiState preference.
See:
https://bugzilla.mozilla.org/show_bug.cgi?id=1075190
https://bugzilla.mozilla.org/show_bug.cgi?id=1075193

Explanations are added to FDM FAQ.

First post here, friendly Hello @ all!

Recently I ran into an issue with the latest Firefox update and found no fix so far.

Some time ago Firefox came up with an update notification, but it also stated the Free Download Manager has to be deactivated as my version 1.6.0.9 is not provided.

I updated Firefox to version 36.0.1. Then I updated Free Download Manager to version 3.9.4 built 1485.

But it seems Firefox doesn't recognize the new plugin version of Free Download Manager as the version 1.6.0.9 remains deactivated on the plugin page (there's no new plugin from the recent FDM listed).

Any hint what I could do to solve this issue?

Best regards

divisi wrote:Any hint what I could do to solve this issue?

Have you read the FDM FAQ about Firefox troubleshooting?

divisi wrote:First post here, friendly Hello @ all!

Recently I ran into an issue with the latest Firefox update and found no fix so far.

Some time ago Firefox came up with an update notification, but it also stated the Free Download Manager has to be deactivated as my version 1.6.0.9 is not provided.

I updated Firefox to version 36.0.1. Then I updated Free Download Manager to version 3.9.4 built 1485.

But it seems Firefox doesn't recognize the new plugin version of Free Download Manager as the version 1.6.0.9 remains deactivated on the plugin page (there's no new plugin from the recent FDM listed).

Any hint what I could do to solve this issue?

Best regards

its fixed since FDM 3.9.5 RC build 1519 (2015-3-5), download from here: viewtopic.php?f=1&t=17016