Maybe the WOT extension isn't multi-process (e10s) compatible.

Try to disable multi-process tabs in Firefox.

You can disable multi-process tabs in Firefox by setting the related prefs to false on the about:config page.

• browser.tabs.remote.autostart = false
• browser.tabs.remote.autostart.2 = false

• http://www.ghacks.net/2016/07/22/multi-process-firefox/

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

• http://kb.mozillazine.org/about:config

It looks like you have an old version of Web of Trust. WOT 20151208 - per your System Details

Web of Trust 20170120 and lower has been blocked for your protection. https://addons.mozilla.org/en-US/firefox/blocked/i1523 Blocked on January 24, 2017. No longer hosted by Mozilla at the Addons.Mozilla.Org website.

See the "Web of Trust" website for a newer version of that extension. https://www.mywot.com/

In case you are not aware of the why the WOT extension has been soft blocked.

http://www.ghacks.net/2016/11/01/browsing-history-sold/ http://www.ghacks.net/2016/11/05/mozilla-and-google-remove-wot-extension/

from https://addons.mozilla.org/blocked/ https://addons.mozilla.org/blocked/i1523

Web of Trust 20170120 and lower has been blocked Why was it blocked? Versions 20170120 and lower of the Web of Trust add-on send excessive user data to its service, which has been reportedly shared with third parties without sufficient sanitization. These versions are also affected by a vulnerability that could lead to unwanted remote code execution.

Once the WOT team provides an acceptable version that passes review then the WOT extension will be listed on addons.mozilla.org again and will not be affected by the soft block. They may not have done much work yet on this when The WOT team even asked for the block to be lifted and they be given an additional grace period even though they had been warned and given almost three months already.

James said

In case you are not aware of the why the WOT extension has been soft blocked. http://www.ghacks.net/2016/11/01/browsing-history-sold/ http://www.ghacks.net/2016/11/05/mozilla-and-google-remove-wot-extension/ from https://addons.mozilla.org/blocked/ https://addons.mozilla.org/blocked/i1523

Web of Trust 20170120 and lower has been blocked Why was it blocked? Versions 20170120 and lower of the Web of Trust add-on send excessive user data to its service, which has been reportedly shared with third parties without sufficient sanitization. These versions are also affected by a vulnerability that could lead to unwanted remote code execution.

Once the WOT provides an acceptable version that passes review then the WOT extension will be listed on addons.mozilla.org again and will not be affected by the soft block. They may have done much work yet on this when The WOT team even asked for the block to be lifted and they be given an additional grace period even though they had been warned and given almost three months already.

Well I hope Web Of Trust makes the proper changers to there add-on, because I kinda blind without it.

I just found this on WOT forums https://www.mywot.com/en/forum/73748-community-update-wot-on-firefox