Posts Tagged ‘Mozilla’

Where is Firefox plugin / bookmarks / temp files directory on Windows?

Saturday, February 13th, 2016

windows-appdata-mozilla-plugins-how-to-check-the-extensions-folder-firefox-windows-screenshot

If you want to find out where Firefox downloads and keeps installed extensions in a quick manner, just press together:
KBD Windows flag button + R

This shortcut will open WIndows Run prompt
And paste inside the run prompt

%appdata%\Mozilla\plugins

The %appdata% is Windows internal variable that keeps inside  path to C:\Users\Your-Username\AppData\Roaming

On my workPC this contains:

C:\Users\georgi7>echo %appdata%
C:\Users\georgi7\AppData\Roaming

mozilla-plugins-folder-in-windows-explorer-screenshot

Enjoy 🙂

Make custom installed Mozilla Firefox restore tab sessions on Debian GNU / Linux

Tuesday, October 30th, 2012

How to make custom installed Firefox restore tabs on browser close up - firefox restore website windows sessions

As my blog readers might, know I'm running Debian Squeeze on my notebook as a Desktop OS. Until some time I used to be a big fan of Epiphany but lately I started not using Epiphany so much because of its too frequent crashes while browsing a website that contains Flash. The problem of course is not in Epiphany itself but in the flash but still, as this is really disturbing if someone works, I nowdays use only Firefox. I tried for a while to use IceWeasel, but IceWeasel (Firefox) version is too old:

hipo@noah:~$ iceweasel –version
Mozilla Iceweasel 3.5.17, Copyright (c) 1998 – 2011 mozilla.org

Thus I use a custom download binary release from Firefox's website the one distributed as of time of writing post in archive firefox-16.0.2.tar.bz2

One of main advantages of installing the custom binary from Firefox, website is it auto updates and I'm always running the latest Release on myLinux Desktop, something IceWeasel still doesn't.

My current firefox version is:

hipo@noah:/opt/firefox$ /opt/firefox/firefox –version
Mozilla Firefox 16.0.2

All works fine with it, except two little things;

  • One is Firefox development team compiled the Browser to still use OSS and not the newer and used almost by all programs ALSA (Advanced Linux Sound Architecture) – something that is unfortunately irreversalble
     
  • Secondly  (which is the reason to write this) Firefox Linux version – doesn't by default Restore closed browser open tab websites! – e.g. session restore in those Firefox version is not working.

In Windows Firefox usually asks, while closing the whole browser, if the user wants to Save Browser Session, on the Linux version this is not default behavior, maybe developers have to answer why?

I was not sure if this would work but I went googling about a plugin to make Firefox Restore Sessions and tried installing first query matched FF plugin Session Manager

I was a bit sceptical that this would work

and actually just intalling the plugin didn't changed Firefox to save websites open in tabs on a close. After however I configured the plugin from FF menus:

Tools -> Session Manager -> Session Manager Options Tab restoration in Firefox worked

In below screnshot from Session Manager Options you can see my exact selected settings


Well that's all, finally I can remember what I had my browser before PC shutdown 🙂

Don’t revoke GoDaddy SSL certificate. (Expired) Revoked SSL is impossible to revert

Thursday, April 12th, 2012

godaddy_logo
One of our company SSL (https) Certificates recently expired so I needed to renew the SSL certificate.

I was in a hurry doing plenty of other stuffs so it seemed logical for me to Revoke the Certificate. I thought revoking the certificate will simply cancel it and afterwards, in Godaddy's SSL (Manager Certificates) interface the Revoked – Cancelled certificate will re-appear in the menu, ready to be generated in the same way as earlier I initially generated the Godaddy's bought SSL certificate

Hence I proceeded and used Revoke button:

Godaddy SSL certificate manager browser certificate Screenshot

Well guess what my calculations, were wrong.
 Revoking, just cancel it. The  revoked domain SSL certificate did not show up again in Godaddy's Cert Manager and I have no way from their interface to revert the changes.

To deal with the situation, I contacted Godaddy Support immediately with the following inquiry:
 

Other : Revoked SSL Certificate
Issue :
Hello we have revoked the SSL certificate for our domain our.domain-name.com.
 Can we revert back the certificate as it was.
If not how to generate a new key for our domain https://our.domain-name.com
Thanks in Advance.
Kindest Regards

"My-Company-name" Tech Support

In 5 hours time I received the following tech support answer:
 

Dear Tech Support,

Thank you for contacting Online Support. It is not possible to reinstate a canceled certificate. You will need to purchase a new certificate. I have requested that a refund be applied to your account. Once the credit appears in your account, please allow 5-7 business days to see the funds applied to the associated payment method. Thank you for your patience and understanding in this matter.

Please let us know if we can help you in any other way.

Sincerely,

Christian P.
Online Support Team
Customer Inquiry
Name : Cadia Tech Support
Domain Name : our.domain-name.com
ShopperID : xxxxxxxxx
Phone : xxxxxxxx
Shopper Validated : Yes
Browser : Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3

Apparently Godaddy, can work out a bit on their tech support answering time 5 hours for a simple reply is quite long.

Now taking in consideration, above reply from Godady, my only options are to either wait for 5 to 7 (business days) or buy a new credit for SSL certificate.

Buying a new credit will probably not happen as our company is experiencing some financial troubles because of the crisis. So I guess we will have to wait for this 7 days at worst. So again if you wonder to REVOKE or not an SSL certificate. Think again …

Just a small note to make here, that Godaddy has a very straight forward way to just renew an expered certificate, which I succesfully later have done for 4 domains. Well, if only I knew earlier what REVOKE SSL cert really does I wouldn't have ended in this mess …

How to make a mirror of website on GNU / Linux with wget / Few tips on wget site mirroring

Wednesday, February 22nd, 2012

how-to-make-mirror-of-website-on-linux-wget

Everyone who used Linux is probably familiar with wget or has used this handy download console tools at least thousand of times. Not so many Desktop GNU / Linux users like Ubuntu and Fedora Linux users had tried using wget to do something more than single files download.
Actually wget is not so popular as it used to be in earlier linux days. I've noticed the tendency for newer Linux users to prefer using curl (I don't know why).

With all said I'm sure there is plenty of Linux users curious on how a website mirror can be made through wget.
This article will briefly suggest few ways to do website mirroring on linux / bsd as wget is both available on those two free operating systems.

1. Most Simple exact mirror copy of website

The most basic use of wget's mirror capabilities is by using wget's -mirror argument:

# wget -m http://website-to-mirror.com/sub-directory/

Creating a mirror like this is not a very good practice, as the links of the mirrored pages will still link to external URLs. In other words link URL will not pointing to your local copy and therefore if you're not connected to the internet and try to browse random links of the webpage you will end up with many links which are not opening because you don't have internet connection.

2. Mirroring with rewritting links to point to localhost and in between download page delay

Making mirror with wget can put an heavy load on the remote server as it fetches the files as quick as the bandwidth allows it. On heavy servers rapid downloads with wget can significantly reduce the download server responce time. Even on a some high-loaded servers it can cause the server to hang completely.
Hence mirroring pages with wget without explicity setting delay in between each page download, could be considered by remote server as a kind of DoS – (denial of service) attack. Even some site administrators have already set firewall rules or web server modules configured like Apache mod_security which filter requests to IPs which are doing too frequent HTTP GET /POST requests to the web server.
To make wget delay with a 10 seconds download between mirrored pages use:

# wget -mk -w 10 -np --random-wait http://website-to-mirror.com/sub-directory/

The -mk stands for -m/-mirror and -k / shortcut argument for –convert-links (make links point locally), –random-wait tells wget to make random waits between o and 10 seconds between each page download request.

3. Mirror / retrieve website sub directory ignoring robots.txt "mirror restrictions"

Some websites has a robots.txt which restricts content download with clients like wget, curl or even prohibits, crawlers to download their website pages completely.

/robots.txt restrictions are not a problem as wget has an option to disable robots.txt checking when downloading.
Getting around the robots.txt restrictions with wget is possible through -e robots=off option.
For instance if you want to make a local mirror copy of the whole sub-directory with all links and do it with a delay of 10 seconds between each consequential page request without reading at all the robots.txt allow/forbid rules:

# wget -mk -w 10 -np -e robots=off --random-wait http://website-to-mirror.com/sub-directory/

4. Mirror website which is prohibiting Download managers like flashget, getright, go!zilla etc.

Sometimes when try to use wget to make a mirror copy of an entire site domain subdirectory or the root site domain, you get an error similar to:

Sorry, but the download manager you are using to view this site is not supported.
We do not support use of such download managers as flashget, go!zilla, or getright

This message is produced by the site dynamic generation language PHP / ASP / JSP etc. used, as the website code is written to check on the browser UserAgent sent.
wget's default sent UserAgent to the remote webserver is:
Wget/1.11.4

As this is not a common desktop browser useragent many webmasters configure their websites to only accept well known established desktop browser useragents sent by client browsers.
Here are few typical user agents which identify a desktop browser:
 

  • Mozilla/5.0 (Windows NT 6.1; rv:6.0) Gecko/20110814 Firefox/6.0
  • Mozilla/5.0 (X11; Linux i686; rv:6.0) Gecko/20100101 Firefox/6.0
  • Mozilla/6.0 (Macintosh; I; Intel Mac OS X 11_7_9; de-LI; rv:1.9b4) Gecko/2012010317 Firefox/10.0a4
  • Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:2.2a1pre) Gecko/20110324 Firefox/4.2a1pre

etc. etc.

If you're trying to mirror a website which has implied some kind of useragent restriction based on some "valid" useragent, wget has the -U option enabling you to fake the useragent.

If you get the Sorry but the download manager you are using to view this site is not supported , fake / change wget's UserAgent with cmd:

# wget -mk -w 10 -np -e robots=off \
--random-wait
--referer="http://www.google.com" \--user-agent="Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6" \--header="Accept:text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5" \--header="Accept-Language: en-us,en;q=0.5" \--header="Accept-Encoding: gzip,deflate" \--header="Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7" \--header="Keep-Alive: 300"

For the sake of some wget anonimity – to make wget permanently hide its user agent and pretend like a Mozilla Firefox running on MS Windows XP use .wgetrc like this in home directory.

5. Make a complete mirror of a website under a domain name

To retrieve complete working copy of a site with wget a good way is like so:

# wget -rkpNl5 -w 10 --random-wait www.website-to-mirror.com

Where the arguments meaning is:
-r – Retrieve recursively
-k – Convert the links in documents to make them suitable for local viewing
-p – Download everything (inline images, sounds and referenced stylesheets etc.)
-N – Turn on time-stamping
-l5 – Specify recursion maximum depth level of 5

6. Make a dynamic pages static site mirror, by converting CGI, ASP, PHP etc. to HTML for offline browsing

It is often websites pages are ending in a .php / .asp / .cgi … extensions. An example of what I mean is for instance the URL http://php.net/manual/en/tutorial.php. You see the url page is tutorial.php once mirrored with wget the local copy will also end up in .php and therefore will not be suitable for local browsing as .php extension is not understood how to interpret by the local browser.
Therefore to copy website with a non-html extension and make it offline browsable in HTML there is the –html-extension option e.g.:

# wget -mk -w 10 -np -e robots=off \
--random-wait \
--convert-links http://www.website-to-mirror.com

A good practice in mirror making is to set a download limit rate. Setting such rate is both good for UP and DOWN side (the local host where downloading and remote server). download-limit is also useful when mirroring websites consisting of many enormous files (documental movies, some music etc.).
To set a download limit to add –limit-rate= option. Passing by to wget –limit-rate=200K would limit download speed to 200KB.

Other useful thing to assure wget has made an accurate mirror is wget logging. To use it pass -o ./my_mirror.log to wget.
 

How to fix multiple instance music streams with sound card (Intel 82801I ICH9 Family) alsa sound problems on Ubuntu 11.04 GNU / Linux

Thursday, October 27th, 2011

Ubuntu Logo Sound / Pulseaudio multiple sound channel issues

The Ubuntu Linux installed previously on Acer ASPIRE 5736Z on my sisters notebook works quite fine. However today she complained about an issue with her sound. The explanation of the problem she faced is:

When she plays a movie file and pauses it and then switches to a music player, suddenly the notebook sound disappears completely until she restarts all the running programs using the sound server. The Acer Aspire is used with a GNOME Desktop, hence my bet was the issues are most probably caused by some kind of mess happening inside Pulseaudio or the way Alsa loaded kernel drivers handles the multiple sound channel streams.

I’m using GNU / Linux for more than 11 years now and I have faced the same sound issues so many times, so when I heard about the problem I thought its pretty normal.
Anyways, what was really irritating in these situation is that when her laptop sound disappears a video or sound files which are to be played by Mozilla Firefox Browser or Chrome are also loosing the sound.
This causes big issues, especially taking in consideration the fact that she had no idea about computers and is a GUI Desktop user, who have no idea how to restart the pulseaudio server to fix the problem etc.

As a good brother, I took the time to check about the issues related to the specific model of Audio Module Hardware / Sound Card, first I checked the exact model of audio the Acer Aspire 5736Z is equipped with:

stanimiraaaa@Ubuntu-Aspire-5736Z:~$ lspci |grep -i audio
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)

I checked about any reported other users issues on the net and I found a user somewhere (lost the link), complaining he is experiencing the same sound oddities on his Acer ASPIRE

The fix he suggested is actually quite simple and comes to adding a simple line to /etc/modprobe.d/alsa-base.conf :

stanimiraaaa@Ubuntu-Aspire-5736Z:~$ sudo su -
[sudo] password for stanimiraaaa:
root@Ubuntu-Aspire-5736Z:~# echo 'options snd_hda_intel model=auto' >> /etc/modprobe.d/alsa-base.conf

Next I restartarted to make the new settings take effect. Its also possible to do it without restart, by unloading and loading the alsa module but I’m a lazy kind of person and the machine is notablyunimportant so why should I bother 😉

One important note here is that I removed also an .asoundrc file, that I created some long time ago and this file might have been creating also some sound issues, the content of ~/.asoundrc, before I delete it in her home user, was like so:

stanimiraaaa@Ubuntu-Aspire-5736Z:~$ cat ~/.asoundrc
pcm.!default {
type hw
card 1
device 0
}
ctl.!default {type hw
card 1
device 0
}
stanimiraaaa@Ubuntu-Aspire-5736Z:~$ rm -f .asoundrc

Doing this minor changes to the Ubuntu system erradicated the sound problems and now the sound with simultaneous sound channel streams works just perfect! Thx God 😉

How to change stored password in Mozilla Thunderbird

Thursday, October 1st, 2009

Everytime I have to delete a wrong stored password in Thunderbird
I have to google in order to find the exact location of where
was the menu that allows me to delete the stupid wrongly typed
password. Therefore I decided to blog it just to make it easier
for me while looking for the dumb menu again and again.
Here is how to navigate to the stored password dialog:
Go to:Edit -> Preferences -> Privacy – Passwords -> Edit Saved PasswordsCheers!END—–