在excel online 按右鍵時firefox選單會擋到excle的選單
youtube也會
本以爲是某插件影響，結果全插件移除還是一樣

原因是什麼？

Flash Video Downloader - YouTube HD Download [4K]由 FVD Media 開發

★ Most popular and ONLY ★ Video Downloader that downloads most of the Streaming Videos, YouTube 4K and Full HD. Flash Video Downloader helps you to download any video from YouTube, Facebook, etc. You can download mp3, music and more.

關於此擴充套件
Flash Video Downloader – the add-on that will help you download video and audio from practically any website.

Flash Video Downloader helps you find links to videos, pictures, audio and files of other formats (such as .swf or .exe) on the site you are viewing.

When the arrow on the add-on button changes its color to blue, it means that the add-on has found a downloadable video on the page that you are viewing.

For instance, you will be able to record video from YouTube in several different formats (HD, MP4, Low FLV, etc.).

It’s worth pointing out that the add-on can also filter out ad clips!

Currently supported sites: YouTube, Google Video (video.google.com), DailyMotion (dailymotion.com), Metacafe (metacafe.com), Break.com (break.com), Blip.tv (blip.tv), MyVideo.de (myvideo.de) and others.

Now you can download Flash games from:
gamespot.com, community.games.com, armorgames.com, net-games.biz, gamesvine.com, zoopgames.com,flashgames247.com
When you get the download link, right click on it >> Save Target As

* Download video in mp4 (iPod)
* Download video in avi format
* You can now choose and set hotkeys
* You can now set a favorites folder and save all your videos there
* The plug-in button changes shape depending on the site you are visiting
* New tube sites added
* Now you can search videos
* You can download several embedded videos from one page!
* User can download embedded YouTube videos from any site if there is only one embedded video on the page!

We do not download video protected by copyright law such as videos from Vevo, Warner Bros, Sony Music, etc.! Please read our license. You are responsible for downloading media that is copyrighted.

Use this add-on as your favorite Facebook downloader, video downloader, Metacafe downloader

https://addons.mozilla.org/zh-TW/fi...deo-downloader/

重建配置也碰到那種閃退狀況
連移除重新安裝也無解

後來選項設定裡關閉硬體加速那個功能，目前暫時沒再發生

先觀察看看

更新到58後目前用兩天是還OK，沒遇到多大問題

但是這兩天一直覺的桌面怪怪的

剛剛才發現.......更新後會把原來icon下Mozilla Firefox改成Firefox

難怪覺得少了什麼

Firefox 59 將引入一系列新 WebExtensions API

Firefox 57 淘汰了舊的擴展，正式轉向了 WebExtensions 擴展架構，但目前 WebExtensions 提供的功能相比舊擴展架構要少許多，導致很多流行的擴展難以移植到新架構。Mozilla 官方博客宣佈下一個版本 Firefox 59 將會引入一系列新的 WebExtensions API 和改進，包括：標籤隱藏，browserSettings.openBookmarksInNewTabs() API，browserSettings.openSearchResultsInNewTabs() API，tabs.captureTab()，更多主題 API，改進 webRequest API，改進 browserAction 和 pageAction，增強擴展對 cookies 的控制，改進代理設置， 等等。此外 Firefox 59 還將支持去中心化協議 Dat Project (dat://)，IPFS (dweb:// ipfs:// ipns://)，Secure Scuttlebutt (ssb://)。

https://www.solidot.org/story?sid=55364

高手有事做 56可以亡了？？？∼∼

看來等Firefox更新到6字頭後，再來進行版本升級評估好了

既然如此那就可以跳過57跟58不看
等59出來再來看看套件究竟有沒有更新再說

Tab Mix WebExtension (experimental)

https://addons.mozilla.org/en-US/fi...s-webextension/

+1，沒有easy drag to go跟tab mix，根本就不是firefox